Soda Can Sized Insert for Desk

I am working on building my own desk, part of that will be integrated cupholders.  This is an insert that drops into a hole and sits with a lip.

It is sized to fit a soda can and have the top 40mm of the can stick out so it is secure but you can still grab it with ease.

This can be resized in your slicer of choice to fit pretty much any hole.