Still a Home Depot thing to get: consider copper tubing. Maybe a piece of 1/4" copper pipe, or maybe some refridgerator tubing (which comes in smaller diameters, though often only in longer pieces?) The 1/4" pipe will be a pit tricky to bend, but it'll definately hold shape.

Or, it occurs to me, take a few pieces from ME, for FREE. Drop by tonight, and I'll show you what I have to offer.