Finally got those Viking glasses I was looking for. I'm not sure where you can buy these in other parts of the world, but I got mine from the Turku Castle gift shop. They have all sorts of cool reproductions of medieval glasses, too, complete with those decorative bumps that kept the glasses from slipping out of greasy fingers.
The great thing about these is that the glass parts slip right out and you can put them in the dishwasher. Not terribly authentic, perhaps, but saves you the trouble of washing them by hand.