The Buoy is designed to be off-balance, like its namesake bobbing device, though not as extremely as a Pilates ball; the idea is that the microadjustments you're continually making with your body are not annoying enough to be a hassle, but adequate to burn some calories. Also unlike a Pilates ball, the Buoy is height-adjustable.
Refinished colorful teacher rocking chair!! Step 1: buy a de-glosser and wipe down all surfaces Step 2: spray whole chair with a white primer spray paint Step 3: go to Home Depot and pick out fun colors and have them make you the paint samples of each Step 4: be creative! Step 5: spray chair with a clear coat of spray paint to seal it all in!