I bought a roll of silvery gray bias tape with the adhesive all ready on it from Quilt in a Day. I laid my block out on a pressing board and stuck straight pins down through the binding--arranging & re-arranging until I had everything where it wanted it. Then I pulled out a few pins and hit that section with my Clover mini-iron. I just kept removing pins and using the mini-iron until I had it all fused. Then I used a very small machine applique stitch all around the binding.
I have also seen paper pieced patterns that have the "leading" built into the pattern so no bias binding is used--just a little sliver of black/gray/bronze fabric before adding each piece.
Stained Glass block
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