Cactus pot for small cactus. Here are sold tiny cactus in ugly plastic pots. So I made a simple, prettier one, in which I just put the original cactus pot.
The opening for the original flower pot is: bottom diameter 40.5mm, top diameter 56mm and height 52mm.
Attention, slicing takes about a minute.
Pictured is pot from Bambulab Matte PLA Dark Green.