Collect clear and colored glass items from local flea markets. If you have picture frames that you don't need, add these to the collection.
Clear a work area in your garage or outside. Try not to work with broken glass inside your house. Lay down a tarp to catch loose fragments during the shattering process.
Lay a shop towel over the pieces of glass you want to break. Rap the glass firmly with a hammer. If you apply too much force, the piece may disintegrate entirely.
Pick out the pieces you think will add interest to the finished piece. Arrange them next to a wooden backing board.
Lay the pieces on the backing board in a pleasing arrangement. Move pieces around to see how different placements achieve different effects.
Cover the entire surface of glass pieces in epoxy. Be sure that the resin drips in between the segments of glass. Wait several hours as the epoxy dries and sets.