This company has been mentioned elsewhere, but I've had a ton of work done by them in the last few months and I really want them to have their own thread. Their work is completely amazing. When I started the Appalachian Whiskey Society over the summer I wanted to have some custom glassware created for tastings and personal use. Since then I have ordered 30 engraved Glencairns for the club and members. Every one has been flawless and shipped without incident. Their turnaround is very speedy as well. Today I received my Christmas gift to myself, a handmade leather caddy and two cut-crystal Glencairns with my monogram/business logo. The craftsmanship of the caddy is exceptional, and the clasp is a very eye-catching design I've not seen before.
Here are some photos of the work I've had done. I really can't recommend them enough. While the website isn't exactly cutting-edge, their service more than makes up for it. http://www.cobhthaighceltique.com/