Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a fun item!

Originally I received this from a friend as a gift and we've had so much fun with it that I bought it for a girlfriend that was turning 21. These are great because it's silicone and they come out of the mold pretty easily. Here are my suggestions to anyone that purchases them: Use a cold beverage in them otherwise they start to melt to quickly. To make more than the four, store them in the freezer on wax paper after removing. Try something fun like adding a bit of grenadine or lime juice after filling with water, it'll settle on the bottom which will end up being the rim of the shot glass and it'll give a bit of flavor with your shot.