How about this for a great looking and unusual gift.

The H2O water powered can shaped clock uses the latest long life H2O technology to power the clear LCD display .
Simply add water to the body of the can to activate it, and enjoy free energy to clearly see the time. Add water when required, typically every 6 to 12 months.

Features include large hi contrast display all housed in a stylish transparent can.
Available in 4 attractive colors