The DICT Development Group

  Curio \Cu"ri*o\ (k?"r?-?), n.; pl. Curios (-?z). [Abbreviation
     of curiosity.]
     Any curiosity[3] or article of virtu; any object esteemed for
     its unusual nature.
     [1913 Webster +PJC]
  
           The busy world, which does not hunt poets as collectors
           hunt for curios.                         --F. Harrison.
     [1913 Webster]

  curio
      n 1: something unusual -- perhaps worthy of collecting [syn:
           curio, curiosity, oddity, oddment, peculiarity,
           rarity]

  72 Moby Thesaurus words for "curio":
     a continental, a curse, a damn, a darn, a hoot, abnormality,
     anomaly, bagatelle, bauble, bean, bibelot, bit, brass farthing,
     button, cent, conversation piece, curiosity, exception, farce,
     farthing, feather, fig, fleabite, folderol, fribble, frippery,
     gaud, gewgaw, gimcrack, hair, halfpenny, hill of beans,
     improbability, jest, joke, kickshaw, knickknack, knickknackery,
     minikin, mockery, molehill, museum piece, nonesuch, oddity,
     peppercorn, picayune, pin, pinch of snuff, pinprick, pretty-pretty,
     prodigiosity, prodigy, rap, rarity, red cent, row of pins, rush,
     shit, snap, sneeshing, sou, strange thing, straw, toy, trifle,
     trinket, triviality, tuppence, two cents, twopence, whatnot,
     whim-wham