Here is a simple trick on making small fused glass cabochons for earrings or other embellishments. Cut 1/2" glass squares. Use only 2 if you are using 3mm glass. Use 3 if you are using 2mm thin glass. Simply cut the squares (a strip cutter will allow to make lots of these fast!) and add a tiny dab of glue to the bottom square. Place the top squares off center as shown. If adding a third layer set the third off set from the middle one. The corners will melt into a rounded circular cab. Little or no grinding is needed.