Egg stands that fit in fridge door shelves. I modelled this after the stock ones with our Siemens fridge-freezer, but it should fit in most fridges.
I needed an extra (eggstra?!) 2x2 stand to fill out the shelf, but also designed a 2x3 version as that's more of a standard size.
Printing face down is best (files already oriented this way). The internal wall of the ‘dome’ of each cup is conical to aid with printing without support, which I managed to do on my fairly stock Ender 3 Pro, but if you feel you need support, it won't hurt.
Settings I used:
The author marked this model as their own original creation.