Heather Behrendt has a great idea .... She uses one of the multi size photo frames, painted the frame and displays various sizes and quanties in the smaller frames. It's a great display option. My thought, find a basic coffee table, set a multi photo frame on top, nail/ glue it in place, then cut a piece of glass to fit on top of the frame find something to hold glass in place on top of frame/table.
Check out heather's show display and you might get a better idea of what i'm trying to explain.