Eight flat-backed figures and scenes that I salvaged over the years from vintage Japan, Italian, and German glass diorama scene indent and dome Christmas ornaments and light sets. Most are hard plastic, one is a mica-encrusted cardboard tree taken from a broken clear glass dome scene German ornament. The largest inserts are about 1-3/4" high. They are typically attached by gluing the bases directly to the ornament or dome base, wiring it onto the pike, or by attaching a small piece of sponge or foam to the back which is then glued to the back wall of the indent. You can add some cotton or sprig of bottle brush to the bottom to hide any glue residue. I've included several pictures of the type of ornaments and lights that the inserts will fit.