looking for a drill press guide

You don't really need a drill press guide to drill holes. You can do it a few ways, you can take a 1/2-3/4" thick piece of wood and drill out a hole the same size as the glass bit and clamp it down on the glass and then drill away with your glass bit or if you just want to do it without a jig you can just start the bit at a slight angle till it gets a small groove going and then hold it straight up and continue drilling I have done this method many times and always get good results.