Calling all Crossfitters and Bodyrockers! Even wanted a Ugi ball, but didn't feel like shelling out $130? Well I made my own, and you can, too!
spaceguy's flickr account. Props to him.
If you have any questions, feel free to comment and I'll get back to you...conceptualizing how to put it together it sorta weird at first (especially for non-sewers like myself). Once you figure out the pattern it's super easy! I would definitely recommend a sewing machine, though, for durability of the seams. Also to save yourself the pain my right hand is in from forcing a needle through dense fabric hundreds of times.