To make a Jell-O Shot, you would need to purchase one 3 ounce box of your favorite flavor of Gelatin. Boil water, and use one cup of it to make your Jell-O. Add 1 cup of any flavor of rum to gelatin mixture, stir, and pour into tiny cups. You can purchase these from your local grocery store. Put filled cups in the freezer for about 30 minutes, and then remove them from the freezer, and put them in the refrigerator. Let chill for about an hour, and then serve.