Above is a coil of rebar wire. And below is the chain I made from a piece of the rebar wire.
The class was Keith LoBue's Chain Gang, click here to see the video of our jump ring assembly line in action. Susan was vaguely interested in it as a bracelet but only if I could permanently fasten it together (yes). Then she had second thoughts about that causing a problem with metal detectors at places like the airport and at the courthouse (she has jury duty).
I was pleased that I was (finally) able to consistently make shapes that are alike and go together with continuity.