Instructables
Picture of Garden Art - Bowling Ball Garden Spheres
You can make garden spheres out of recycled bowling balls. They don't blow away in the wind, and they won't shatter into a million pieces if they get knocked off their stand. You can paint them or glue things to them. If you live in an area that gets freezing temperatures over the winter, you will want to bring your ball inside for the winter. An unheated storage shed is fine. Bowling balls are made up of different materials and some will shatter when exposed to water and freezing temperatures.

Complete instructions as well as more examples can be found on my website. http://www.gardensandcrafts.com/bbart.html

 
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Step 1: Finding and Preparing your Bowling Ball

You can find bowling balls at garage sales , thrift stores and bowling alleys. Many times you can get them for free at bowling alleys or on Freecycle, all you have to do is ask.

Always start with a clean and prepped bowling ball. Use rubbing alcohol or vinegar to get the wax finish off the ball. Sand lightly to rough up the surface, then rinse and dry the ball before painting or gluing.

Step 2: Painting your Bowling Ball

Picture of Painting your Bowling Ball
Sit your ball on a coffee can or some other object to make it easier to work on. You may want to fill the holes with concrete or wood putty filler. Leave one hole uncovered if you plan on using rebard/re-rod to display your ball. You don't have to fill the holes if you don't want to...just display the ball with the holes facing the ground so they are not seen.

Use a paint designed for plastics, or use a plastic primer before painting. I find that spray paint is easier to work with. Always choose a paint that is rated for outdoor use.

Sealing a project with 2-3 layers of an outdoor polyurethane will help the paint job last longer. This ball is painted with a copper colored paint and has been in my garden for four years now.

Step 3: Mosaic a Bowling Ball

Picture of Mosaic a Bowling Ball
If you want to mosaic a bowling ball, you should prep it the same way by cleaning it and getting the wax off as in Step 1 of this Instructable.

There are a variety of adhesives that can be used, based on what type of material you will be applying to the ball. I find that thinset mortar, construction adhesive, clear silicone or premixed concrete patch work for most things. Mac Glue, Plumber's Goop and Silicone work well for glass. Make sure you have proper ventilation when working with glues, following the manufacturer's instructions.

I used Plumber's Goop to apply these glass globs to the ball. The ball was already a pretty bluish-green color, so I did not feel the need to paint it first. I did not grout it.

Step 4: Glass Globes on a Bowling Ball

Picture of Glass Globes on a Bowling Ball
Here is another example of glass globes glued to the ball. I used a metal vase I found at the thrift store as the base.

Step 5: Grouting your Bowling Ball

Picture of Grouting your Bowling Ball
If you choose to do a traditional mosaic on your ball, cover the ball completely with your pieces, leaving about a quarter inch gap between them for the grout. I like to use stained glass scrap, mirrors or ceramic tile.

Always use sanded grout as it holds up better outdoors. Adding Admix to the grout instead of water will strengthen grout and help to prevent mold and mildew. Mix the grout so that it is the consistency of a stiff brownie batter. Always wear a dust mask when mixing grout to avoid breathing in the grout dust. It's easier to apply the grout with your hands on a round surface. Wearing two pair of latex or nitrile gloves when applying the grout will protect your hands from chemicals and from getting cut by any sharp edges. Apply the grout so that it gets in between all the pieces. This adds strength to the mosaic.

Allow the grout to set up for 10 minutes, then wipe off excess grout using a dry cloth or sponge. Allow grout to set up for another 10 minutes, then wipe the ball down with a damp sponge, buffing the tiles as you go along to remove any grout film.

Have a bucket of water handy and use the water to keep your sponge clean as much as possible. Never put this water down your drains, as any grout residue can set up in your pipes and cause a blockage. Pour any water outside and then wipe out any grout residue that remains and dispose of it in the trash.

Sealing the grout is not an absolute necessity, but I find the grout resists stains better that way and lasts longer outdoors. Sealer can be applied after grout has set up for at least 24 hours. Follow manufacturer's instructions, as they may be slightly different depending on the brand you use.
karen6084 years ago
Last year I found a ratty bowling ball next to the road in my town. This year I am going to make a rock ball out of it. Thanks for spurring me to action. I was thinking also, I could make some lighter weight ones out of two plastic bowls glued together then decorated, or use foil, shaped into a ball, then go over that with patching concrete, and add the decorative bits. Not sure how it'd work but cheaper than buying things at the garden center!
l8nite4 years ago
A lot of bowling balls are already neatly colored and make cool garden accents, I have a dozen or so scattered around, for a couple of years I had a solid red one with a piece of black electrical cable stuck in one of the holes, it looked like a giant cherry bomb!  Yours look pretty awesome....
miamiwings5 years ago
hard to find used bowling balls.
GardensAndCrafts (author)  miamiwings5 years ago
You can find used bowling balls at some thrift stores or get them free off www.freecycle.org or even Craig's List. I just post an ad that I need a few and usually get a dozen responses. You can also ask for them at your local bowling alley....they usually will give them away. I've gotten dozens this way.
I just saw your reply.  Sorry it took so long to answer.  I never thought of freecycle.  Thanks
peacenique5 years ago
Now, all of them are lovely, but this one grabs my attention most. I think it would be wonderful to cover the ball with mirrors as it will then reflect the sunlight in the garden. Thank you so much for the instructions and inspiration. It just so happens that I am the proud new owner of a bowling ball!
no way that thing's going anywhere....
Awesome...I made mosaic birdbaths out of terra cota pot bases one year for christmas presents .This is one I'm definenately going to do. People were laughing at my bowling balls sitting outside.