(even if you aren't vegan)
Chaos' Sprite Center
Yes. The location of all of my delicious sprite-atude. As per usual, I thought putting them on a subpage of my userpage would be BOGUS, NOOBISH, AND CLICHED. With any luck, I can fire up the engines and maybe make custom sprites for those willing folk.
Zippy the Platypus
Off-Wiki Friend Sprites
Homebrewed Character Sprites
see more at:
For a slightly better selection...
Visit my DA page, where I'll post certain sprites on the internet that won't be seen anywhere else! And all of the above crap, too.