The bracket for the soap holder in our shower rusted through so I designed and printed this temporary replacement until I get time or am bothered to get a new one.

I printed it out in Matte Grey PLA so I don't know how long it will last and I don't expect that it can withstand significant load but unless someone falls or leans on it then it shouldn't need to.

I used 100% infill just to make it as sturdy as possible but you could probably print with infill as long as you give enough wall thickness for the screws to bite into.

No supports required.