Radioactive Elements Glowing Coaster Set from ThinkGeek
http://www.thinkgeek.com/147f?cpg=yt
-Coasters that light up when you put your drink on them
-Perfect for the chemist in your life
-Great for parties - easily remember which drink is yours
-Feature the atomic number and isotopic mass of the most stable or common isotope for each element
-Materials: Plastic
-Batteries: 8 3V CR2032 batteries (included)
-With constant use, batteries last c. 4.5 hours
-Dimensions: 3 3/4" square, 1/4" thick
-Weight: 3/4 lb. (set of 4)
-Not dishwasher safe
-Radium-226 (Red)
-Plutonium-244 (Blue)
-Uranium-238 (Green)
-Thorium-232 (Orange)
Music by MCFlashdance "TK-421"
https://soundcloud.com/mcflashdance/tk-421
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