Take a fresh pineapple, remove the peel and dice into medium size cubes. Put the diced pineapple into a glass jar (mine filled a 2-quart canning jar) and add coconut rum until the pineapple is completely covered. Keep the jar on your counter and invert it a couple times a day until you are ready to partake. Serve straight up or over ice. And make sure none of that pineapple goes to waste.