need cool looking fuel cap inside bed

[oldschooler]

Hey guys,
I am putting a fuel cell under my bed. I need a cool looking cap to put in the bed floor. I dont want to do the tailight or stake pocket thing. Going to keep it simple and put it in the steel bed floor. Maybe even in the back of the wheel tub (not too sure how safe that might be though). But i want something cool looking. Do any of our vendors carry anything? Any ideas or pics would be appreciated. Thanks Rich