I love love love this chart, it's too funny. It's a ravelry downloadable pattern, which has the fornicating deer alone or with the forest charted for a hat. I adjusted the pattern slightly, because it also had a star in the pattern above the sheep, but it would've made the hat too tall.
Knit with my favourite yarn - Patons Classic Wool. I think it turned out rather well, if I do say so myself, and can't wait for the opportunity for me to wear it out in public!