Created this ball holder to go along with my Sword and Shield cosplay. I first made it to be compatible with the Clip N' Go system [affiliate link] https://amzn.to/37jhnUj. I then decided to make individual balls as solid models and hollow ones that could be glued together then secured.
In total, there are three different back plates. Two of these loop over the side of one's pants. The other has a hole at the top for affixing to a belt. Because of the weight, it's advisable to secure these back plates to a belt under one's shorts, in general.
There are two front pieces that hold the balls. One of theses pieces has sections where balls can be snapped into place. The other front piece has holes where a screw can be used to affix the ball to the front plate.
Both the front and back plate are secured to each other with a 1/4 inch (6.35 mm) in diameter screw post.
The entire model, when assembled, measures approximately 203 mm x 139 mm x 82 mm.