Cat in the Hat??

Definitely looks like a creepy / steampunk-ish version of the Cat in the Hat.

My friend Sam informed me this is American McGee's Mad Hatter, as seen on DeviantArt (thanks again, Sam).

Art type: Sticker - Stencil
Date of picture: November 28, 2011
Where: Behind Biology the Biology building, across from the fields (South Campus)
Active? No