This is a replacement for a knob of our bathtub. It was missing, and I couldn't find any replacement - so I made it myself.
Please note that bathtub knobs have no standard mount, each one looks different. This one is mounted on a bolt which has a star form. See the foto.
The original was from the European company "Baumax" which doesn't exist anymore.
Please post your makes as "i made one"!
Sample from Anet PLA
I painted the knob with a white varnish.