The Collaborative International Dictionary of English v.0.48:

Trinket \Trin"ket\, v. i.
   To give trinkets; hence, to court favor; to intrigue. [Obs.]
   --South.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Trinket \Trin"ket\, n. [F. trinquet foremast, also, a certain
   sail, trinquette a triangular sail, or Sp. trinquete
   triangular.] (Naut.)
   A three-cornered sail formerly carried on a ship's foremast,
   probably on a lateen yard.
   [1913 Webster]

         Sailing always with the sheets of mainsail and trinket
         warily in our hands.                     --Hakluyt.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Trinket \Trin"ket\, n. [OE. trenket a sort of knife, hence,
   probably, a toy knife worn as an ornament; probably from an
   Old French dialectic form of trenchier to cut. Cf. Trench,
   v. t.]
   1. A knife; a cutting tool. --Tusser.
      [1913 Webster]

   2. A small ornament, as a jewel, ring, or the like.
      [1913 Webster]

   3. A thing of little value; a trifle; a toy.
      [1913 Webster]

WordNet (r) 3.0 (2006):

trinket
    n 1: cheap showy jewelry or ornament on clothing [syn: bangle,
         bauble, gaud, gewgaw, novelty, fallal, trinket]

Moby Thesaurus II by Grady Ward, 1.0:

100 Moby Thesaurus words for "trinket":
   a continental, a curse, a damn, a darn, a hoot, agate, bagatelle,
   ball, baseball bat, bat, battledore, bauble, bean, bibelot, bit,
   blocks, brass farthing, bric-a-brac, button, cent, checkerboard,
   chessboard, club, cockhorse, cricket bat, cue, curio, doll,
   doll carriage, farce, farthing, feather, fig, fleabite, folderol,
   fribble, frippery, gaud, gewgaw, gimcrack, golf club, hair,
   halfpenny, hill of beans, hobbyhorse, jack-in-the-box, jacks,
   jackstones, jackstraws, jest, joke, kickshaw, knack, knickknack,
   knickknackery, marble, marionette, mig, minikin, mockery, molehill,
   novelty, paper doll, peppercorn, picayune, pick-up sticks, pin,
   pinch of snuff, pinprick, pinwheel, plaything, puppet, racket,
   rag doll, rap, red cent, rocking horse, row of pins, rush, shit,
   snap, sneeshing, sou, sport, steelie, straw, taw, teetotum, tinsel,
   top, toy, toy soldier, trifle, trine, triviality, tuppence,
   two cents, twopence, whatnot, whim-wham