Use caution when using this mug. While we get that a mug is designed to hold liquid, we do worry a bit about you getting them gremlins wet. I'm sure it's fine. What's the worst that could happen? The Gremlins The Gremlins Are Coming 11 oz. White Ceramic Mug makes a great gift for fans of the classic Gremlins movie. Do not microwave. Hand wash only. Not dishwasher safe.