I guess GIFs aren’t supported but starting today, when I send an emoji in Google Messages (beta) it continuously spins around and bounces. I’m not sure how I feel about that.
EDIT: Looks like there is a website that details all the animations. https://googlefonts.github.io/noto-emoji-animation/
Oh wow, I did not know that! They don’t seem to be the animated versions that I’m a little more familiar with. That was years ago and I don’t remember exactly how I produced these.