Universal Fridge Stacking Aid

Easy to print, I printed with .4 nozzle and 3 walls (the holder is 2.4mm thick) without brim, no place for infill.
 

If you are not sure about adhesion you should use a brim. PLA worked fine here.

I also uploaded some models for specific bottle/can diameters, this model here is better if you want to organize bottles with different sizes.

Design by schiko on MakerWorld (license: BY).