Print one base and one cap. Designed to fit a 608 skateboard bearing (such as these https://amzn.to/3RgMuWM ) and then use blue tack to hold to the top of pill bottles. Bottles are inexpensive or reuse ones that you have. By using blue tack its infinitely reusable and cost effective. Upcycle those old bottles to help you paint!
https://amzn.to/3CGY4Xl
The author marked this model as their own original creation.