Kamenstein’s motion kettles are quite popular among collectors. They are designed to come to life as water boils inside them. Take the Kamenstein World of Motion Bumble Bee Kettle for instance: it is a cute kettle with bees that start spinning as your water boils.
The front bee also flaps its wings as water boils inside the kettle. The above video shows this cool motion kettle in action. These kettles are rare but you can always find them on eBay.