My 3 year old kid loves playing bus, and loves to push the stop button at the bus, so I decided to make this stop button for her room. It is designed to fit a 25 mm standard clothes rack/pipe. They are kind of ideal since they have a lot of different mounting fixtures tho fit them on the wall.
I did print the button "standing" instead lying down, which would probably be much easier. This resulted in a couple of failed prints before I got a raft that was good enough. The reason for printing this way is I did not want the layers to become visible. If printed lying, the layers will become much more visible due to the low slope of the shape.
My first intention was to make this a working button with a little buzzer, but I changed my mind when I realized how annoying that would be. It should be kind of easy to turn it into a working button though.
Yellow and red
The button is fit inside the cover element and needs two 6 mm push springs to work. The lid is put on the inside to hold everything in place. The assembly was then screwed onto a 25 mm clothes rack/pipe. I did this by drilling holes and added threads with a screw tap. But I suppose you could just drill right through and use a nut as well.