Gather your materials. For the wire, I used 28 Gauge Steel wire. You will probably need around 30 inches of wire depending on how large your glass is.

Your going to start by placing the end of the wire on the back of the glass, bending it towards the front.

After bending it to the front bend it again towards the back. So now you should have two wires crossed.

Continue twisting the wire until you have it exactly how you want it. Taking the wire that you have left, fold it under the other wires to secure it. You may need wires to pull it out.

Cut off the extra wire.

The glass should look like this when your finished.

Take a wire ring and put it where you want your necklace chain to go. Add your chain and you are done!