Some t-shirts are funny, and other t-shirts are so painfully un-funny that they're also funny. The list below is dedicated to the latter.
10. More Cowbell - Is it a requirement that every aspiring t-shirt designer include a "more cowbell" design of some sort? Yes, the skit was funny, and yes, Christopher Walken is a god, but does the world really need another t-shirt to commemorate the clip?
9. Don't Taze Me Bro - Okay, we all knew it was coming. Unfortunately, this is just another one of those things that's going to be beaten into the ground until even the original is no longer funny (Chapelle's Rick James line, anyone?). The designer here has clearly put a lot of thought into his design, though. Note the "clever" lightning bolts over the word "taze". Genius!
