Anyone make funny exhaust/muffler decals?

Bike I just picked up has a Big Gun ES slip on that the PO peeled the sticker off of for whatever reason. Kinda looks like crap now with baked on adhesive all over it.

I'd like to clean it up and replace it with something funny. Is this something that gets made? I really don't have any of my own ideas and can't find anything pre-existing.

Closest thing I can find is the DBK Cheech and Chong one, but that's not really my vibe. 

Otherwise I'm just thinking about some Ricky Bobby sticker and call it good.