How to drill glass in under 3 minutes. Full tutorial at: http://makify.com/how-to-drill-glass/
Diamond-tipped glass hole bits via Amazon:
Set of 5 (up to 1") - http://amzn.to/1AOIbTW
Set of 5 (up to 1/2") - http://amzn.to/1Cdd4WC
Set of 5 (up to 1 1/2") - http://amzn.to/1AOJhim
