This Firefly Troublemaker Ceramic Bowl Set is based on a T-shirt made famous by Jayne Cobb. It’s perfect for any troublemaker and looks great in your kitchen. These bowls are made of stoneware and come with a removable silicone ring to protect surfaces and prevent sliding. Be a troublemaker while you eat your morning cereal or eat a snack while watching the hit show, and be reminded of the Firefly crew.