All my fun fonts that I downloaded awhile ago were accidentally erased from my computer in an attempt to save it from crashing. So I have been searching to find the ones I love. Here are some sites that have helped...
Dafont has tons of free fonts. All fonts are listed under different themes. Great for any project. :) In fact you can even download a font that has a theme of transformers, or hello kitty, or other shows and such that you could you use for a number of projects.
Or go to 1001 free fonts.
Or Kevin and Amanda have a bunch of cute ones.
Or Two Peas in a bucket.