This cool 10-piece set of glass brain coasters will let you show your guests just how brainy they are. When stacked in the correct order (which is easy to remember because of the labels), the brain slices on these coasters form a 3D coaster on your tabletop!

The 4”x4” set of 10 Brain Specimen coasters goes for $19.99 on Thinkgeek, and has rubber legs to keep them from scratching whatever they’re meant to protect.

More info: (h/t: laughingsquid)