Here are 4 super rare steam motion kettles that come to life as you boil water in them. The Kamenstein World of Motion Kettles are physics toys that demonstrate how steam engines work. They have moving elements that get going as you boil water. They were made in locomotive, rocket, bumblebee, and carousel designs. In this video, we show how these kettles compare:
These steam kettles are rare but you can find them on eBay if you look hard enough. The carousel one gave us the most trouble as it is very hard to find in working condition.