Purikura

I absolutely adore kawaii. And I love adding purikura to my photos. I recently discovered http://purikura.me/. It's got some cute frames and stickers (which you can customize). I normally use puricute (http://puricute.com) or meitu xiu xiu (xiuxiu.meitu.com), but Punykura works quite well too.
Anyway, have fun cutening up your pics!