RE: New kit builder! Which clamps?
Go to the local fabric store and get some 'T' pins also. I wouldn't bother with the tower hobbies stuff. They look like a real pain to work with plus the set up looks weak unless you pile on the rubber bands. Stick with the spring clamps that are suggested, from Sears and Harbor Freight. Lowes, Home Depot and similar stoes will have the same.