Do you know what's cool? Glow-in-the-dark tumblers! They're like a party in your hand. And you don't even have to go outside to enjoy it.
Just expose them to light for 5 minutes, and they will glow all night long. It doesn't matter if you're drinking hot or cold drinks-they'll still be glowing when the sun goes down.
These tumblers are made of durable plastic and come in three different colors with a matte finish. They glow in the dark when exposed to UV/light first.