Potatoes also make a good base for vodka. Making liquor at home is a time-consuming process, but there's a nice payoff for the patient do-it-yourselfer. You'll need a pressure cooker and a home distiller. You can find either of these online or at any beer- or wine-making supply store, as well as recipes with specific instructions.
When making potato liquor, you're not really using the potatoes themselves -- just the potato water. The pressure cooker helps the potatoes dissolve into the cooking water, and you later strain any pieces of potato out. You should perform the distilling process several times to get a clean-tasting vodka. After your vodka is ready, you can flavor it any way you'd like by simply adding fruit right into the bottle or jar. Shake up the mixture every day. The longer you leave in the fruit, the sweeter and more flavorful your vodka will become. Cheers!