Hang on, folks, it seems the Catherine cover has achieved full-blown art meme status. Some fine Japanese artists have taken it upon themselves to switch out all sorts of characters for Catherine, Katherine, and Vincent and the Sheep as they appear on the two different Catherine game covers. Significant preference is given to the PS3 version for obvious reasons.
The Lucky Star and Scanty and Kneesocks covers stick out as my favorites, though I'm a bit disappointed that there's no Friendship is Magic version. Yet.
*opens up Sai*
From other sites around the web