Shinjidude said: Unfortunately this one has been done to death already (pun unintentional, but appropriate). See optical_illusion skull for others.
Yeah, I know the skull illusion thing isn't really groundbreaking. Heck, my friends and I laugh every time we see 'Shrooms' at the local rental place. I just thought it was unusual to see two cute little girls used as the subject for such a pic. I apparently forgot that I'm on Danbooru. In Japan, little girls have already been combined with everything possibly conceivable.
