This Bedside Table mounts itself to the side beam of Beds. The slot is Angled to Clamp to slightly differing Sizes, but around 28mm is Optimal. Adding some Anti-Slip Furniture Pads to the inside of The slot achieves a really satisfying Grip in the End. 

The Trash can is https://www.printables.com/model/1338983-strong-geometric-vase-mode-bintrash-can-bottom-fix printed at 75% Scale, But anything roughly the same Shape will Work. Hole Diameter is 140mm.