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

11 Materials
$60
4 Days
Medium

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!

YouTube
Blog
After Photo
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Have a question about this project?

3 of 44 questions
  • Kay Watson
    on May 25, 2019

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

    • Joe Jones
      on Nov 7, 2019

      I would say yes but you can always spread a layer of smooth concrete or even fiberglass over the thinset or the inside of it

  • Don Richards
    on May 29, 2019

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

    • Ella Frierson Bond
      on Dec 11, 2019

      I can think of several ways. You could flatten the bottom when you make it or maybe take a bucket lid or something the proper size and pour concrete in it and set the orb in the concret. Let dry.

  • Nae43124281
    on Jun 18, 2019

    My name is naeem I am modular kitchen fitter


Join the conversation

2 of 105 comments
  • Joy
    on Mar 15, 2020

    I certainly am going to do this project but as a water fountain by putting a piece of stiff tubing up through the middle of the ball and having the water flowing down the outside of it

  • Anna Y
    on Apr 6, 2020

    Definitely want some of those in my yard. Maybe fill some airline tubing with fluorescent paint and wrap around before the last layer of cement goes on to secure it.

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