Crosstables posted this list on livejournal, and I thought it was worth copying here: a list words that can take a sequence of hooks to become another word (or as it's been called on the podcast occasionally, a 'hook train')... you may hear some of these in upcoming episodes:
4 / THIONIN --> THIONINE --> ETHIONINE --> METHIONINE --> METHIONINES
4 / CARABIN --> CARABINE --> CARABINER --> CARABINERO --> CARABINEROS
3 / RADIATE --> ERADIATE --> RERADIATE --> RERADIATED
3 / REJUDGE --> PREJUDGE --> PREJUDGER --> PREJUDGERS
3 / RADIATE --> ERADIATE --> RERADIATE --> RERADIATES
3 / MIGRATE --> EMIGRATE --> REMIGRATE --> REMIGRATED
3 / NERVATE --> ENERVATE --> DENERVATE --> DENERVATES
3 / VALUATE --> EVALUATE --> REVALUATE --> REVALUATED
3 / ITERATE --> LITERATE --> ALITERATE --> ALITERATES
3 / THIONIN --> THIONINE --> ETHIONINE --> ETHIONINES
3 / VERSION --> EVERSION --> REVERSION --> REVERSIONS
3 / VALUATE --> EVALUATE --> DEVALUATE --> DEVALUATES
3 / ETCHING --> LETCHING --> FLETCHING --> FLETCHINGS
3 / MIGRATE --> EMIGRATE --> REMIGRATE --> REMIGRATES
3 / VALUATE --> EVALUATE --> REVALUATE --> REVALUATES
3 / NERVATE --> ENERVATE --> DENERVATE --> DENERVATED
3 / PRINCES --> PRINCESS --> PRINCESSE --> PRINCESSES
3 / MOLLUSC --> MOLLUSCA --> MOLLUSCAN --> MOLLUSCANS
3 / BRASSIE --> BRASSIER --> BRASSIERE --> BRASSIERES
3 / AMBLING --> RAMBLING --> BRAMBLING --> BRAMBLINGS
3 / ENVELOP --> ENVELOPE --> ENVELOPER --> ENVELOPERS
3 / ENOUNCE --> DENOUNCE --> DENOUNCER --> DENOUNCERS
3 / STRANGE --> ESTRANGE --> ESTRANGER --> ESTRANGERS
3 / DEVELOP --> DEVELOPE --> DEVELOPER --> DEVELOPERS
3 / VALUATE --> EVALUATE --> DEVALUATE --> DEVALUATED
3 / BASEMEN --> BASEMENT --> ABASEMENT --> ABASEMENTS
3 / FRACTUR --> FRACTURE --> FRACTURER --> FRACTURERS
3 / BOTANIC --> BOTANICA --> BOTANICAL --> BOTANICALS
3 / ACERATE --> MACERATE --> MACERATER --> MACERATERS
3 / ENOUNCE --> RENOUNCE --> RENOUNCER --> RENOUNCERS
3 / STAMPED --> STAMPEDE --> STAMPEDER --> STAMPEDERS
3 / DIPLOMA --> DIPLOMAT --> DIPLOMATE --> DIPLOMATES
3 / PENSION --> PENSIONE --> PENSIONER --> PENSIONERS
3 / RESERVE --> PRESERVE --> PRESERVER --> PRESERVERS
3 / SCALADE --> ESCALADE --> ESCALADER --> ESCALADERS
3 / LECTION --> ELECTION --> SELECTION --> SELECTIONS
3 / SUNBATH --> SUNBATHE --> SUNBATHER --> SUNBATHERS
3 / CARABIN --> CARABINE --> CARABINER --> CARABINERS
3 / PROLONG --> PROLONGE --> PROLONGER --> PROLONGERS
3 / REPLICA --> REPLICAS --> REPLICASE --> REPLICASES
3 / REHEARS --> REHEARSE --> REHEARSER --> REHEARSERS
3 / MISSION --> EMISSION --> DEMISSION --> DEMISSIONS
3 / CARACOL --> CARACOLE --> CARACOLER --> CARACOLERS
3 / ORALISM --> MORALISM --> AMORALISM --> AMORALISMS
3 / UTTERER --> PUTTERER --> SPUTTERER --> SPUTTERERS
3 / HILLING --> CHILLING --> SCHILLING --> SCHILLINGS
3 / INKLING --> WINKLING --> TWINKLING --> TWINKLINGS
3 / OLOGIST --> OOLOGIST --> ZOOLOGIST --> ZOOLOGISTS
3 / PRACTIC --> PRACTICE --> PRACTICER --> PRACTICERS
3 / JELLABA --> DJELLABA --> DJELLABAH --> DJELLABAHS
3 / RAPPING --> TRAPPING --> STRAPPING --> STRAPPINGS
3 / MISSION --> EMISSION --> REMISSION --> REMISSIONS
3 / NEUROMA --> NEUROMAS --> NEUROMAST --> NEUROMASTS
3 / BACKBIT --> BACKBITE --> BACKBITER --> BACKBITERS
3 / CRAPPIE --> CRAPPIES --> CRAPPIEST --> SCRAPPIEST
3 / VOCATION --> EVOCATION --> REVOCATION --> REVOCATIONS
3 / VOLUTION --> EVOLUTION --> REVOLUTION --> REVOLUTIONS
3 / VOLUTION --> EVOLUTION --> DEVOLUTION --> DEVOLUTIONS
3 / GRAFFITI --> GRAFFITIS --> GRAFFITIST --> GRAFFITISTS
3 / BACKSLID --> BACKSLIDE --> BACKSLIDER --> BACKSLIDERS
3 / MIGRATION --> EMIGRATION --> REMIGRATION --> PREMIGRATION
3 / ORTHOPTER --> ORTHOPTERA --> ORTHOPTERAN --> ORTHOPTERANS
3 / VALUATION --> EVALUATION --> DEVALUATION --> DEVALUATIONS
3 / NERVATION --> ENERVATION --> DENERVATION --> DENERVATIONS
3 / VALUATION --> EVALUATION --> REVALUATION --> REVALUATIONS
3 / MIGRATION --> EMIGRATION --> REMIGRATION --> REMIGRATIONS
3 / REDETERMINE --> PREDETERMINE --> PREDETERMINER --> PREDETERMINERS
3 / FORAMINIFER --> FORAMINIFERA --> FORAMINIFERAN --> FORAMINIFERANS
Starting with any length word:
7 / LA --> LAP --> LAPS --> LAPSE --> ELAPSE --> RELAPSE --> RELAPSER --> RELAPSERS
7 / AT --> EAT --> HEAT --> HEATH --> SHEATH --> SHEATHE --> SHEATHER --> SHEATHERS
7 / LA --> LAS --> LASS --> LASSI --> LASSIE --> GLASSIE --> GLASSIES --> GLASSIEST
7 / PI --> PIN --> PING --> APING --> RAPING --> CRAPING --> SCRAPING --> SCRAPINGS
7 / LA --> LAS --> LASS --> LASSI --> LASSIS --> CLASSIS --> CLASSISM --> CLASSISMS
7 / LA --> LAS --> LASS --> LASSI --> LASSIS --> CLASSIS --> CLASSIST --> CLASSISTS
7 / AI --> RAI --> RAIS --> RAISE --> PRAISE --> UPRAISE --> UPRAISER --> UPRAISERS
6 / ER --> ERN --> TERN --> STERN --> STERNA --> STERNAL --> ASTERNAL
6 / AI --> AIL --> MAIL --> MAILE --> MAILED --> EMAILED --> REMAILED
6 / AT --> SAT --> SATI --> SATIN --> ISATIN --> ISATINE --> ISATINES
6 / TA --> TAT --> STAT --> STATE --> ESTATE --> GESTATE --> GESTATED
6 / AI --> RAI --> RAIS --> RAISE --> PRAISE --> UPRAISE --> UPRAISED
6 / IN --> WIN --> WING --> OWING --> ROWING --> TROWING --> STROWING
6 / UT --> OUT --> ROUT --> ROUTE --> ROUTER --> GROUTER --> GROUTERS
6 / MO --> MOT --> MOTE --> EMOTE --> REMOTE --> REMOTES --> REMOTEST
6 / EN --> END --> LEND --> BLEND --> BLENDE --> BLENDER --> BLENDERS
6 / TA --> TAT --> STAT --> STATE --> ESTATE --> RESTATE --> RESTATED
6 / AL --> GAL --> EGAL --> REGAL --> REGALE --> REGALER --> REGALERS
6 / IN --> RIN --> RING --> IRING --> AIRING --> FAIRING --> FAIRINGS
6 / AT --> OAT --> OATH --> LOATH --> LOATHE --> LOATHER --> LOATHERS
6 / AI --> AID --> AIDE --> AIDER --> RAIDER --> BRAIDER --> BRAIDERS
6 / IN --> RIN --> RING --> IRING --> AIRING --> LAIRING --> GLAIRING
6 / PA --> PAS --> PAST --> PASTE --> PASTER --> PASTERN --> PASTERNS
6 / HE --> HER --> HERM --> THERM --> THERME --> THERMEL --> THERMELS
6 / IN --> WIN --> WING --> SWING --> SWINGE --> SWINGER --> SWINGERS
6 / LA --> LAT --> LATH --> LATHE --> LATHER --> BLATHER --> BLATHERS
6 / AR --> ARC --> NARC --> NARCO --> NARCOS --> NARCOSE --> NARCOSES
6 / AN --> RAN --> RANG --> RANGE --> GRANGE --> GRANGER --> GRANGERS
6 / TA --> TAT --> STAT --> STATE --> ESTATE --> GESTATE --> GESTATES
6 / UT --> BUT --> BUTT --> BUTTE --> BUTTER --> ABUTTER --> ABUTTERS
6 / HI --> HIE --> HIES --> SHIES --> SHIEST --> ASHIEST --> DASHIEST
6 / OS --> COS --> COST --> COSTA --> COSTAR --> COSTARD --> COSTARDS
6 / IN --> RIN --> RING --> IRING --> AIRING --> PAIRING --> PAIRINGS
6 / AI --> RAI --> RAIS --> RAISE --> PRAISE --> UPRAISE --> UPRAISES
6 / AL --> ALL --> CALL --> CALLA --> CALLAN --> CALLANT --> CALLANTS
6 / LA --> LAP --> LAPS --> LAPSE --> ELAPSE --> RELAPSE --> RELAPSED
6 / HI --> HIE --> HIES --> SHIES --> SHIEST --> ASHIEST --> WASHIEST
6 / IT --> WIT --> WITH --> SWITH --> SWITHE --> SWITHER --> SWITHERS
6 / SH --> SHE --> SHES --> ASHES --> RASHES --> BRASHES --> BRASHEST
6 / AR --> OAR --> HOAR --> HOARS --> HOARSE --> HOARSEN --> HOARSENS
6 / IN --> WIN --> WING --> AWING --> HAWING --> SHAWING --> PSHAWING
6 / LA --> LAT --> LATH --> LATHE --> LATHER --> SLATHER --> SLATHERS
6 / AM --> AMI --> AMIN --> GAMIN --> GAMINE --> GAMINES --> GAMINESS
6 / PE --> APE --> CAPE --> SCAPE --> ESCAPE --> ESCAPEE --> ESCAPEES
6 / AT --> WAT --> SWAT --> SWATH --> SWATHE --> SWATHER --> SWATHERS
6 / TA --> TAP --> TAPE --> ETAPE --> RETAPE --> PRETAPE --> PRETAPED
6 / OW --> ROW --> BROW --> BROWS --> BROWSE --> BROWSER --> BROWSERS
6 / LA --> LAT --> LATE --> ELATE --> RELATE --> PRELATE --> PRELATES
6 / PE --> APE --> CAPE --> SCAPE --> ESCAPE --> ESCAPER --> ESCAPERS
6 / UT --> PUT --> PUTT --> PUTTI --> PUTTIE --> PUTTIER --> PUTTIERS
6 / RE --> REP --> REPO --> REPOS --> REPOSE --> REPOSER --> REPOSERS
6 / LA --> LAT --> LATE --> ELATE --> RELATE --> RELATER --> RELATERS
6 / HI --> CHI --> CHIA --> CHIAS --> CHIASM --> CHIASMA --> CHIASMAL
6 / AT --> EAT --> HEAT --> HEATH --> SHEATH --> SHEATHE --> SHEATHED
6 / TA --> TAT --> STAT --> STATE --> ESTATE --> TESTATE --> TESTATES
6 / HA --> HAS --> HAST --> HASTE --> CHASTE --> CHASTEN --> CHASTENS
6 / EN --> ENS --> LENS --> LENSE --> FLENSE --> FLENSER --> FLENSERS
6 / TA --> TAP --> TAPE --> ETAPE --> RETAPE --> PRETAPE --> PRETAPES
6 / AL --> ALL --> ALLY --> RALLY --> ORALLY --> MORALLY --> AMORALLY
6 / TA --> TAT --> STAT --> STATE --> ESTATE --> RESTATE --> RESTATES
6 / SH --> SHE --> SHED --> ASHED --> LASHED --> PLASHED --> SPLASHED
6 / IN --> YIN --> AYIN --> LAYIN --> LAYING --> PLAYING --> SPLAYING
6 / BO --> BOO --> BOOK --> EBOOK --> REBOOK --> PREBOOK --> PREBOOKS
6 / AI --> RAI --> RAIS --> RAISE --> PRAISE --> PRAISER --> PRAISERS
6 / AL --> ALL --> HALL --> HALLO --> HALLOT --> SHALLOT --> SHALLOTS
6 / BA --> BAR --> BARB --> BARBE --> BARBEL --> BARBELL --> BARBELLS
6 / AT --> EAT --> HEAT --> HEATH --> SHEATH --> SHEATHE --> SHEATHES
6 / HI --> CHI --> CHIA --> CHIAS --> CHIASM --> CHIASMI --> CHIASMIC
6 / LA --> LAP --> LAPS --> LAPSE --> ELAPSE --> RELAPSE --> RELAPSES
6 / OR --> ORA --> HORA --> HORAL --> CHORAL --> CHORALE --> CHORALES
6 / AL --> ALL --> HALL --> HALLO --> HALLOT --> CHALLOT --> CHALLOTH
6 / MA --> MAT --> MATT --> MATTE --> MATTER --> SMATTER --> SMATTERS
6 / LA --> LAS --> LASS --> LASSI --> LASSIE --> GLASSIE --> GLASSIES
6 / MA --> MAX --> MAXI --> MAXIM --> MAXIMA --> MAXIMAL --> MAXIMALS
6 / AL --> ALL --> HALL --> HALLO --> HALLOW --> SHALLOW --> SHALLOWS
6 / SH --> SHE --> SHES --> ASHES --> LASHES --> PLASHES --> SPLASHES
6 / AR --> CAR --> CARL --> CARLE --> CARLES --> CARLESS --> SCARLESS
6 / MA --> MAS --> MASS --> MASSE --> MASSES --> AMASSES --> CAMASSES
6 / PE --> APE --> RAPE --> CRAPE --> SCRAPE --> SCRAPER --> SCRAPERS
6 / HI --> CHI --> CHIA --> CHIAS --> CHIASM --> CHIASMA --> CHIASMAS
6 / LEA --> LEAN --> CLEAN --> CLEANS --> CLEANSE --> CLEANSER --> CLEANSERS
