I bet your chair is not as fun as the Spun Chair. This is a playful chair that lets you rock side-to-side or spin around without falling to the floor. Designed by Thomas Heatherwick for Magis, the Spun Chair is made of rotational-molded plastic, so you can sit and spin both indoors and outside. Your movement causes the spinning top to tilt and turn.
More gadgets like this: here
The above video shows the Spun Chair in action. Not cheap but looks a lot of fun to try.
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