Redditor senekafalls commissioned the creation of this, the world's greatest car window sticker. Car Stickers did the actual work, but it was senekafalls's idea--and a brilliant one at that. S/he says that it's printed on 70/30 transparency plastic, so it's translucent from the inside and therefore legal.
I hope that, someday, before I pass into the next life, I am overtaken on the road by Nick Cage waving to me.
-via Jalopnik