Simple can holder - no supports

A recent contest was put up for can holders, I looked through the early entries, but didn't see any in a basic form that I'd like to print.  I was looking for a simple robust model, and the closest ones I saw were minimalist designs.  This design is made in 2 pieces, and the handle is printed flat, it inserts from the bottom into a tapered sliding dovetail in the main body.
I've included both the stl files and .step files to allow customizing. 
Also included is a test fit ring with the same inner diameter (67mm) as the can holder, it's a quick print ~5 minutes on my mk3s, and will allow you to test fit for different size cans.  Once you've got a scale factor to fit your custom can dialed in you can print the main parts with the same scaling.