Mixed Colors Stained Glass MiniCobblets MiniCobblets are tiny glass pebbles of beautiful Cathedral Stained Glass with the look and feel of translucent polished pebbles. Glass for Crafts including mosaics, glass collage, glitter, floral and scrapbooking. Softly tumbled glass with a brilliant shine. The glass pieces range in size from 1/8th to 3/8. The color mix includes various shades of gold, green, blue, rose, clear, purple, and amber.