How to make the Captain On A Diet – . Friends and I invented this after we ran out of regular Pepsi one night. Tried it and that’s all we drink now… even at the bar. The higher amount of aspartame makes the liquor more potent and gets you drunk quicker while tasting better at the same time.. . if you’re not drinking Beer you’re drinking Rum and Cokes.. “Fill glass with Ice to the top. Drop one shot of C’mos SpIced Rum… fill in rest with Diet Pepsi. Tastes just like Vanilla Coke… works great.”