Using these Hello Kitty cappuccino cups is super easy. Just pour a little water into the cup, and watch as a cute, scented Hello Kitty squishy appears. It's a fun activity for kids and adults alike. When handling the cups, be careful not to spill the water. After you've revealed the squishy, you can keep it as a collectible. There's no special maintenance needed, just keep it in a clean and dry place. Remember, the styles are chosen randomly when we send them out. If you have a favorite character, let us know in your order, but we can only try to get it for you based on what's available. Each cup is sold separately, so if you want to collect all eight characters, you might want to visit your local Toyworld store.