Define "flash"!

If you search for programs to create Flashfiles, look here:
http://www.3dfa.com
http://http://www.macromedia.com/software/flash/

You can download Flashfilms and -animations here:
http://jo.zan.hu/poen/flash/
http://albinoblacksheep.com/flash/
WARNING:
Some of the Movies or animations in these two directories have violent content!