I made it from a 1 mm iron plate. After the suitable measurements and cutting, I used the power hammer, english wheel, a little shrinking at the edges, then the final touch was TIG welding. So I'm ready to call to life any fuel tanks or re-design an old one. The price is like 250 €, depending about the form and complexity.
NEW SERVICE ! In 2012 I am offering you free modelling of your chosen item in Rhino3D. If you want to know how the item you dreamt about would look like, just send me a sketch of the tool, decoration item, unique things, or just write about it, and I will make a free drawing in 3D, and send it back to you. Like this you'll get a better picture of what you want and what you will get. About the programme itself: Rhino3D, if you want, after registration you can download the evaluation version from: www.rhino3d.com website. Here are a few pictures of what I meant.