Antique gold Butterflies- medium sized and can be used as is in a mosaic. Has a loop to use it as a pendant, or you could cut that off with tin-snips or a Dremel. You could also use the butterfly as a bezel, by filling it with Apoxie Sculpt, and gently pushing gemstones or filati into it. Just make sure you don't have the AS oozing through the gaps at I'm-setting Rock-Hard-Now-time. Clean it off at I'm-soft-and-pliable-stage.
Size17mm long x 25 mm wide, 3-4 mm deep
Sold in a bag of 10 butterflies.
..... don't let your materials limit you... play with your tess-array!!!!