I'm going to try to make any kind of request except 3D animation or Flash animations, just regular animations (Simple animations as in Text Fading, moving, effects on siggnatures, etc). I have no talent for drawing btw. And I have never made any sprites before, but it probably won't give me problems.
Wallpapers - (This probably will take me some time, I do spend 7 to 8 hours for just one wallpaper).
Signatures - (30 min top)
Avatars - (10 min top)
Tabs - (5 min top)
Animated - (+10 min)
Any other thing that you could think of, you are most welcome to ask for it. I'll try my best
BTW, you can give specific details for the creation of your request (such as height and width or subject-related, etc)
My latest work (still in progress):
Credits to Azrael for Ripping a background out of the 3rd mision of Metal Slug 3.