ESN Protein Dream Spread Drinking Glass Stacking Aid

The company ESN sells cream, called “Protein Dream Spread" in glasses, which you can use a drinking glass. Unfortunately, the glasses cannot simply be stacked. That's why I designed this little stacking aid. It can be printed without support material.
The tolerances worked on my Prusa MK2.5S, but did not fit so well on a BambuLab X1C. That's why both versions are available. 

The print in the photo was done on a Prusa MK2.5S with Fillamentum PLA Crystal Clear Iceland Blue. The outer surface was covered with a FuzzySkin. The infill was Octagram spiral.