See, I really *do* sew!

Peacock 'corset' vest. The pattern claims it's a corset, but it's not boned and ties with ribbon, so I'd say it doesn't quite qualify. Cotton fashion fabric (I can't remember for sure, it may well be a quilter's cotton), muslin interlining and quilter's cotton lining. Bias trim made from metallic gold fabric that seems to be mostly cotton.