Does anybody know if these kinds of beads have a special name? I have been looking all over for them because I want to expand the bands on a couple of my stretch rings, but so far I have only been able to find them in one place and that seller is only selling them in large lots. I need like...30 or so, not a gross or three. But my efforts at finding more places that sell the beads aren't turning up any other results. Anyone ideas?