Going off the air engine design of Robert Stirling does this tiny little mechanism give you an entertaining spin. Using pistons fueled by temperature difference, the wheel on this tinker toy spins, offering up to one hour of laughs and fun. That’s right, it doesn’t need to be sitting atop a cup of coffee or tea, for cold beverages will do just fine, as well.

Let’s just say that when I wake up, something in the way of my caffeine, no matter how cute, will surely be served with a slap off my mug. The idea, however, is charming

-Ana Luczynski