Wild Orchid Crafts - German Glass Glitter in 2 GRIT types - 80 & 100
and available in 20 different colors.
80 GRIT = Larger pieces of glass particles, greater 'shine' factor
100 GRIT = Smaller pieces of glass particles, less 'shine' but also less sharp
A simple Elmer's School Glue is the best one to use, make sure it dries clear.