https://avatarmagic.com usually has some good animated avvies. I think you have to have a special computer program to make an animated avvie. And you can also glitterfy a still one to make it animated. Or just ask somebody to make you one who knows how to do it or has an avatar shop open.
Nah, Iconator is better than avatar magic, well that's what I think. I got my own avatar there and heaps of other ones. The best thing about it is that you don't have to edit them in any way, because more than likely the avatar you wanted will be in there and it's such a wide community and there are away messges too for when you're not online.