"You can't go wrong with concrete. These Concrete Tumblers ($40 set) mix a sold concrete base with a glass top, giving off a modern vibe that works as well for water as it does for martinis while providing an ultra-stable base for minimal spillage." - Derrick from Bookmarklet

I'd hate to have the bottom of one tumbler accidentally knock into the top of another. - Katy S

I'd get them for the bar, but can you imagine a fight with concrete and glass? - Ben Hanten

thats why i liked them in the first place, your a mind reader ben, ;) - chaz2b

One of my first trip to a gay bar involved some Mexican transsexuals, broken beer bottles, and a six and a half foot tall effeminate barber chasing everyone out of the bar threatening to cut patrons. I can only imagine how ugly it would've got if these were there. - Derrick

actually it was more of a memory for me. as a teenager i was at a party, my friend got in a fight and punched the guy with his german beer stein, memorable to say the least, :o and these brought back the thoughts, :/ - chaz2b