I wanted a ladder to put in my room so I could use it for clothes, etc. and I found this great IKEA plant stand (Satsumas).
Except, I didn't want to screw it into the wall, so instead, I designed and printed these wall rests. They are screwed into the shelf itself, and on the other side I put some rubber pads, which you could also print.
I've now actually had the plant stand outside, as a plant stand, leaning against the wall with these for more than a year, and it hasn't moved.
The wall rests are designed for a 75º articulation of the ladder (15º from the wall), and to be used with rubber pads up to 11mm in diameter, and a minimum of 1mm thickness.
The printed pads are 11mm in diameter, and 3mm of thickness. Most off the shelf pads will have double sided adhesive, you can glue the 3d printed ones in place.
The author marked this model as their own original creation.