gas tank frame

Hello everyone, my project for the next week is replacing my piece-of-crud, leaky stock gas tank for something more sleek and better functioning. I would love to see pictures of other custom gas tanks that people have made/mounted (particularly tanks mounted behind the seat, mounted under the...

I have a Micargi falcon GTS Has anyone used the frame for a gas tank. Or has anyone used other types of frames to incorporate an internal gas tank.