WordNet (r) 3.0 (2006):

toy with
    v 1: take into consideration, have in view; "He entertained the
         notion of moving to South America" [syn: entertain,
         think of, toy with, flirt with, think about]

Moby Thesaurus II by Grady Ward, 1.0:

67 Moby Thesaurus words for "toy with":
   be abstracted, be innocent of, brood, chew the cud, consider,
   contemplate, coquet, coquet with, dabble, dally, debate,
   deliberate, digest, fiddle, fiddle with, fiddle-faddle,
   fidget with, finger with, flirt, fool, fool around, fool with,
   fribble, frivol, give up, have no idea, horse around, idle,
   introspect, jerk off, kid around, know a little, know not,
   know not what, know nothing of, loiter, meditate, mess around,
   monkey, monkey around, muse, not know, not rightly know, pass,
   perpend, piddle, play, play around, play around with, play with,
   ponder, potter, putter, reflect, ruminate, scratch the surface,
   smatter, speculate, study, tinker, toy, trifle, twiddle, weigh,
   wonder, wonder whether, wot not of