Accelerator Spinning Chair, designed by Jaanus Osugaar, is designed to spin instead of rock and comes with built in hand straps to make you stick tight on chair.
"The spinning chair is the opposite to the rocking chair. When the rocking chair calms and puts you at ease, the spinning-chair energises and stimulates. The vibration from the spinning of the metal ball inside awakens your spirit and renews your cells. After 6 spins you end up where you started. "