A general hook from which to hang things. This started out as a hook I mounted in the bathroom with a basic flat back and some double sided tape. Then while looking at the wall I thought it could be used with my WHS and modified it with the slot.

Use common sense when mounting with double sided tape. I use mine for towels in the bathroom. If i wanted to put any weight on them I would install the WHS version instead. Prototype in image was printed PLA and it has shown no signs of mold, mildew, or layer separation despite the semi-hostile environment of a bathroom.

If you're worried about moisture ingress or anything like that then follow the best practices for watertight prints:

1. Slower Speed
2. Thick Layers
3. More Walls
4. Hot end temps towards the hotter spectrum of where you normally print your desired material but obviously stay away from the break down temps.