How To Use a Yoga Ball To Make a Concrete Sphere-Planter

by Tala
11 Materials
4 Days
Large sphere molds can be very difficult to find. At History Stones we sell 10", 12" and 15" diameter molds. We often receive requests for larger spheres, so we decided to use a yoga ball as a mold and share this project!
Check out this video above to learn how to make your own! I have also included step by step instructions below.

Place the yoga ball on a bucket, with a wire ring around the edge.
Connect an air hose to the yoga ball. When your project is finished and dried you will use this air hose to deflate the yoga ball and remove it!

Cut the adhesive mesh into strips half way down the ball. Then wrap the pieces around the wire ring.
Then use some of the small adhesive mesh to tighten up and secure the larger pieces.
Spread thin set over the mesh by hand. You will have to wait at least 6 hours and repeat this process three times so that you have at least three layers of thin set. The more layers the stronger and better!
Wait at least 24 hours after your last layer and deflate the yoga ball. Remove the yoga ball from the sphere, and you are almost done!
Now for the fun part! You can paint your sphere, keep it white and use a sealer, or use acid stain... Whatever your heart desires. We decided to use Brickform acid stains in coffee and olive. To achieve the drippy look pour some of the acid stain in spray bottles.
Let your masterpiece dry and you are done!! You can fill the ball with soil and plant something beautiful inside, or leave it as a sphere.

If you like what we are doing, here are some links below!

After Photo
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Frequently asked questions
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3 of 44 questions
  • Kay Watson Kay Watson on May 25, 2019

    I like this idea. with using thin is water tight enough to use as a fountain Thanks K

  • Don Don on May 29, 2019

    Excellent idea! Question is, how would you suggest stabilizing this orb to be used as a planter?

  • Cherie Cherie on Feb 29, 2024

    do you have to deflate the ball? can you just leave the ball inside as is?

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2 of 109 comments
  • Katen Katen on Jan 02, 2024

    Coolest idea I’ve seen in long time. I think I’d consider smaller using a kids playball and just cut slit and deflate ball to remove and make orb for garden and large for plants. Might consider making hole bit larger for planting. Thanks for sharing and tips/suggestions for decorating to suite your tastes

  • Alice Norton Alice Norton on Jan 13, 2024

    I also like the idea a lot!

    I ordered two yoga balls via mobstub my order (one for me and one extra as my kids like jumping on these balls and I already threw two balls). They will arrive soon. I think I'll give your project a try. Thanks for sharing!