Although I added keyholes in order to hang/mount my pill bottle racks to a wall or pegboard, I don't actually do that. They just flat around on my work bench. Whenever I pick one up to move it, I have to be careful not to pull a bottle out. I finally realized that I can make a simple carry handle that uses the keyholes and can carry two pill bottle racks.
Here's a link to my Pill Bottle Rack design, suited to the small prescription bottles with an approximate 32mm diameter.
https://www.printables.com/model/73593-pill-bottle-rack-walgreens-32mm
Print the STL as is and then either glue in the keys or just let it be a press fit. My prototype works fine without glue, due to the design. Just don't push down on the handle. :)
The author marked this model as their own original creation.