I've made this sticker for myself, but maybe somebody would like to have it! It's my avi with a transparent background, with butterfly and stars ornament.
Size 800x760 px. This is the large version of the sticker, there's also a smaller one (800x760 px) here

This is the original size, but you can also see it on my homepage

Here I've put it on a different homepage background color, only to show that it fits on any bg color!