It really does not take much in the way of materials to build this. Here are the tools and materials I used.
Square dowels- lots of them, a few different sizes helps
1/8" plywood. Mine is marine mahogany, because I have some scraps of it.
Furniture nails- use anything thicker and the wood will split almost every time
Drill with lots of small bits
Stainless steel axles- these can be taken from RC cars
3 long bolts and twice as many nuts
Dremel tool with flexible shaft attachment. (Other rotary tools will work just as well, such as THIS ONE
Box cutter- for cutting the brass tubing
Wood carving knife
"U" screws with bolts