"It's hard to get the necessary three layers to work in shooter cubes, so we put layers of vodka-flavored Jell-O in little glasses and garnished them with whipped cream, to be eaten with a spoon. If your glasses are bigger than a small shot glass, you should cut down on the usual cup of vodka per box of Jell-O. You can substitute other liquor to improve the taste. Of course, these can be made without liquor...."