A stand with spillage channels + a leveler that sits on the basket for Bialetti moka pot baskets with 44.5 outer diameter. It still needs some minor adjustments with tolerances and overall design but it is usable as it is.
The source file is included, feel free to remix it for other basket sizes.
Inspired by (not a remix):
https://www.printables.com/model/1130492-bialetti-brikka-2-cups-moka-pot-stand
The author marked this model as their own original creation.