If you don't have rum extract, coconut, pineapple or citrus extract could be used too. Find them in the baking aisle of your local grocery or specialty food store and put them to use in any of these other rum extract recipes, too.
How far in advance can you make pina colada fluff?
If using prepared whipped topping, you can make the pina colada fluff a few days in advance. Just make sure you keep it in the fridge until it's time to serve. If using homemade whipped cream, be more cautious and make the fluff only a few hours in advance, or a day ahead at most. If you make it too far ahead, you may see the homemade whipped cream begin to deflate.