Periodic Table Clock

This periodic table clock functions just as any other clock except instead of numbers it has the symbol of the atom which has an atomic number corresponding to that number on the clock. For instance, Hydrogen (H) has an atomic number of one so it is used instead. This is a cool gimmicky gift idea for science students or just people with a general interest in science. It can also be a fun educational tool for children that already know how to read a clock and are beginning to learn chemistry.