You'll want to sip this poolside.
Add Spiced Rum, 7Up and pineapple juice to a glass.
Add 1-2 scoops of pineapple sherbet.
You don't need to measure to make this recipe. Simply use 1 part rum to 4 parts 7UP plus a splash of pineapple juice. Or find a similar recipe on 7UP's Digital Bartender to help your portion your drink.