These Brain Coasters have been making the rounds in many of the blogs I follow lately (and some kind readers sent me the link, too!).
Each set of Brain Specimen Coasters comes with ten glass coasters. Each coaster has four rubber feet (to further protect the surfaces the coasters are protecting in the first place) and a slice of brain printed on it. If you stack your Brain Specimen Coasters in the proper order (which is easy to do, since the coasters are labeled) and look from the proper angle, you’ll see a full brain.
These belong in my house.