I work in stained glass and drilling holes in glass is not difficult. It is a matter of having the right bit and a little patience.

There are carbide spade bits that are O.K. but slow. Then there diamond bits, the one I use is like a large dental burr. It puts drilling glass on the same footing as bitchy stainless steel .

For a one off you can take a peace of tubing, file a few notches in the end and run it in a puddle of valve grinding compound. Works but very slow.

Next time you are going up to the mountains stop at Warner Crivellaro. WWW.WARNER-CRIV.COM. They are right behind the ABE airport. A large warehouse/show room of every kind of glass imaginable and how to work it. Be amazed.

Have you looked at Micarta? A knifemakers, handle material. It is a phenolic made from paper, linen or canvas and available in a range of colors...John