Shot Stack
thingiverse
This is a shot glass tower designed for this one: https://www.amazon.com/gp/product/B08X3T9SY1 though it probably would fit most straight shot glasses. To print, use back side down, no support needed.
Download Model from thingiverse
With this file you will be able to print Shot Stack with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Shot Stack.