Here are the animated GIFs on my computer's HTTP share that might be useful for an avatar, possibly after a resize in GIMP:
Space Channel 5 invades DDR
MAX 300 steps
this was my avatar at Bemanistyle.com for a while
Dr. Robotnik as a Weeble (shrink this first)
Dancing padlock in the style of a dancing banana. If your moderator uses this, watch out.