Bring the tropics to your back yard. Serve delicious watermelon inspired drinks from your own watermelon keg. Simply of the top of the watermelon. Hollow out the inside with the coring tool included make a hole near the bottom side and attach the plastic shank and faucet now fill with your favourite cocktail. We would recommend this Vodka Watermelon recipe 8 cups of chilled watermelon ( zap the inside of the watermelon in a mixer) 11,5 fluid oz of coconut water, 4 tbs of freshly squeezed lime juice, 1 cup of vodka, stir together and pour into the watermelon keg. Serve over ice and garnish with some mint leaves. This recipe makes 8 cocktails and at 136 calories is not too worrying.. STAINLESS STEEL / PLASTIC. Hand wash only in soapy water.