I got a couple of these Ikea FEJKA fake succulents for my desk but didn't want the bottom of the pot scratching up the desk if it got slid around. I printed them in Kingroon TPU. 5 top and bottom layers, 3 perimeters and 6% hex infill. You give them a little twist as your push the center nub into the bottom of the pot and they will stay put.
The author marked this model as their own original creation.