Introduction: Homemade Medicine Ball for My Wife

My wife wanted a 2.5 lb. and 5 lb. medicine balls for her light workouts, but couldn't find what she needed at any of the sporting goods stores. I figured I could make the size medicine balls she wanted for next to nothing. All I needed was a child's ball ($7.99 x2), a funnel (I bough an automotive funnel ($1.97) but found a smaller, better one in our kitchen), playground sand (I had a bag in the garage) a scale (I started off with a bathroom scale but ended up using a kitchen scale) a tube of clear bathroom/kitchen caulk ($3.59), a pocket knife, and a cookie sheet.

Step 1: Preparing the Ball

I used my pocket knife to cut a small X (slightly smaller than the end of the funnel) at the top of the ball (photo disappeared). I made the first cut with the small blade of the knife but then finished the X cuts with the scissors. I then inserted the funnel in preparation for the sand.

Step 2: Filling the Ball

My bag of play sand was damp from being stored in the garage, so I spread it out on a cookie pan and baked it in the oven for 10 minutes at 400 degrees. When it was dry and cool, I used a measuring cup to pour it into the ball through the funnel.

Step 3: Weighing the Ball

At first I was using a bathroom scale, but didn't feel it was very accurate – I had to weigh myself, then weigh myself holding the ball. So I found my wife's kitchen scale which was the perfect size and more accurate.

Step 4: Sealing the Ball

When the ball was at the desired weight (remember to compensate for the removal of the funnel), I inserted the nozzle of the caulk tube and spread caulk around the inside edge of the hole. With the nozzle still inserted, I turned the ball upside down so the sand covered the hole and the still inserted caulking tube nozzle, and squeezed in another dab of caulk inside the ball. I then removed the nozzle, wiped away any residual caulk/sand and added a dab of caulk to the outside of the hole.

Step 5: Finishing the Ball

With a slightly wet finger, I smoothed the dab of caulk to form a slight mound making sure the edges had good contact to the ball's surface. I set the balls aside for 24 hours to dry, but suggested my wife to wait 48 hours to insure the caulk inside the ball had time to completely set up.

Comments

author
tomatoskins (author)2015-03-20

This is a great idea! Did you fill the ball completely? What would you suggest doing if you wanted they weight of only half the ball full of sand? Any ideas for what the fill the other half with?

author
Can DemirY (author)tomatoskins2016-05-04

might be a bit late for an answer but canned polyurethane foam works nicely. just fill the whole left space in the ball and leave it outside for a day, the liquid foam will expand and solidfy both setting the sand in one part of the ball and sealing the funnel entrance. cut the excess oozed and solidified foam from the ball and use. :)

author
jsilvers2 (author)tomatoskins2015-03-20

The 2 lb. ball was only filled around 1/6 the way with sand and the 5 lb. ball was just over half. The use of the scale was key to getting the weights I wanted – the more sand, the more it weighed. I liked having the empty space filled with just air so my wife could get a good grip on it, but you could fill the void with something light like the Styrofoam balls used to fill bean bags. Or maybe fill the whole thing with something lighter than sand, like dried rice or corn.

author
jsilvers2 (author)2015-03-28

Great idea with the balloon.

author
bigblue1973 (author)2015-03-28

if you blow up a balloon inside the ball first then as you fill up you can let a little air out of the balloon until desired weight is reached then you just tie of the balloon and seal as described. not sure how long the balloon will last but mine is still going well.

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