from GrogTag:

Cover your butt!
Yes, that’s right, your butt is hanging out all over the place and it’s going to leave marks all over my nice table top, so here’s a coaster. Use it.

GrogTag has the right weapon to fight against wet glass butts – the Double-Thick Coaster! Upload an image and make your coaster truly unique, or simply modify one of our over 70 existing designs and add a bit of flair to your drinking environment.