I scaled this up for a 150% dummy and changed the mount to an EZ-hook which just presses in. Holds the dummy without issue. Recommend PETG

I modified the original shower hook because it was too small, too short, and the inner diameter was too tight for my shower door. I've increased the inner diameter to just over 1 inch and elongated the design for a better fit. There are now two versions available: one slim and one thicker, depending on what you need to hang.