Search:

The brass pins are simply small brass nails, sometimes called "brads". Dirt cheap at many hardware and hobby/crafts shops. The only advantage I see to them over just using 1/16" brass rod is that...

Too bad they're copper and not brass.[/quote]
Too bad the smallest is twice or more larger than you would want.

You can use the #0 wide (0.188") washers and dome them yourself. Get a little...