Once at a garage saw I picked up some 10' pieces of 1.25" galvanized chain-link fence pipe for $1 each. I use the pipe for just about everything from making a pole saw to making tools like these.
Tools needed to make this are a hack saw, pliers, tin snips, hammer, and a drill.
Materials needed, a 1.25" thin walled pipe (I think its the same as electrical conduit), a long bolt, some tape.
Step 1: Cut Some Pipe and Open It
Step 2: Make Some More Cuts and Bends
Step 3: Drill a Support Screw Hole
Step 4: Finishing Touches
That's it! I might add some teeth with the tin snips some time, but for now it works pretty well.