I needed an extension for the feet of my ikea vimle sofa so that my robot vacuum can fit under it. I specifically adjusted the height to fit the Roborock S55 (newer models should fit also.
It's a simple print in place model which fits over the existing feet without need of any additional hardware. No supports required if printed with the closed part down.
I printed it out of generic PLA and it works great. 4 perimeters, 15% gyroid infill to give the piece more strength. Maybe it's a little overkill but better be safe than sorry, otherwise you could fall down from your sofa watching your favorite tv show with your friends.
The author hasn't provided the model origin yet.