As in: La pelicula Big Fish es caprichosa. The movie Big Fish is whimsical. Speaking of Tim Burton, how excited are you about the Alice in Wonderland movie? If you haven't already seen it, check out Johnny Depp as the Mad Hatter. Sweet.
Anyway, I like both of these words because they both sound whimsical. The 'ch' sound isn't very popular in Spanish, which adds to the foreign-ness of the word for me.
(Thanks for helping me out David!)