FRUIT CAKE POWERED CHRISTMAS TREE
This easy to use device lets you make a simple battery from a traditional holiday fruitcake.
First, soak the cake in lemon juice. Then insert the anode (b) and cathode (c) into fruitcake (d). The lemon juice and natural fruit acids contained in the cake do the rest.
Special low voltage, direct current Christmas lights (a) are designed to be fully compatible with the power output of a typical fruitcake.