After many months of searching at thrift stores for buttons and coming up relatively empty, I had a restorative experience yesterday! As in, it restored my faith that it was possible to find beautiful buttons in thrift stores. I found these at the bottom of a bin at our Goodwill Outlet. The sparkly ones were mixed in with some Christmas ornaments -- not even vintage ornaments. The larger stones on the outside are aurora borealis stones; the smaller ones have a pale green tinge. Here's what the back looks like. I think they are just beautiful! I believe these grape cluster buttons are made from Lucite or a similar plastic with sparkles in the mix. They definitely need to be cleaned but I have to research the best way before I attempt it. Aren't they fun?