I found mine at a wal-mart, sold as a single mug for $7...but here's a site that seems to sell the same item, just by the dozen: http://www.restockit.com/browseprodu...(1153UAH).html

I also collect steins and unique beerware (this hobby is worse than crack...steins go from $100 to over $1,000....I can only afford the $100 ones at most and garage sales specials ). Keeps me on top of finding this stuff. There is a better quality version of this 1l glass mug around, but you can't fit your hand through the handle quite as well. The better quality one has a "thumb rest" on the top of it.