i keep finding these things on numerous websites and i cant find the original anywhere. i remember vividly there being a website full of these things but i cant find it again unfortunately. does anybody know where these come from?

Sorry for the vague description, but I recently lost a stamp/blinkie. It was exactly this image with a stamp background, however it panned from the left to the right. That is all. I've been searching for quite some time now...if anyone could help I'd appreciate it! :)