I first saw these unusual glasses at Heston's pub in Bray, The Hinds Head. I had been looking for them everywhere JL, DBNHM etc..
Finally came across them on Amazon. They make a great talking point, feel great to drink from and the the quality is great... you get more than what you pay for!! I chose the pack of 6 rather than the 4's.
Makes a great whiskey glass!