It's not free but it's only a buck: open source sticker pack from StickerMule

And note these are pretty high quality stickers too.

No gentoo, no perl, and no emacs in the $1 pack :/

Although I'm a vi user, I have to respect that they give you the the Emacs sticker the pack labeled "Elite" :)

Well yeah, emacs users are elite :)

If you really prefer the vi syntax, there is even an "evil mode" for emacs - https://github.com/emacs-evil/evil