Make Your Own Medicine Ball

I've tried out several different methods for making medicine balls. All seem to work great. My first attempt was simply taking an old basketball that I had sitting around and cutting a small 'X' shaped slit with a box cutter. I put a funnel into the slit and opened up a $3 bag of sand and started filling. I then took a roll of duct tape and taped the hell out of it. I was left with a silver ball, which weighed in at 23 lbs. I finished up by writing the weight on the ball with a Sharpie. The ball has lasted a couple years, and I still use it from time to time. Browsing the Internet I found an article that showed how to make a medicine ball that you could pump air back into to retain its shape and give it more bounce if you wanted. This way produced a ball that rivals the expensive Dynamax balls. Here are the plans: THE SLAMMER: A How to Guide to Making Your Own Medicine Balls