1 large seedless watermelon
strong liquor of choice (vodka works great)
Cut off one end of the watermelon and save for later. Stick a knife in the inside to break up into pieces (some may need to be removed). Stand upright on a flat surface and add liquor of choice. Use the hammer and nail to make holes big enough to fit a straw. Put the top back on, and the straws through holes. This is best if chilled for 30 minutes before drinking and will last a long time.