This is a quick design to replace my desk's old coaster set with something that is more ergonomic and won't slide on the desk as I placed my cups on them. This design also affords better clearance as the cups slide under and behind my monitors to maximize my desk space.
I also designed a Cover for my cups to keep the cats out. They know I keep cups of water on my desk and when I'm not looking they help themselves. Who wants cat spit in their water? I love my cats, but we all know where their tongues have been.
As a bonus I integrated a holder for my Memory Card reader. This give it a more permanent place to live on my desk so it isn't getting in the way.