Selector Switch Cover
thingiverse
This is a thread on cover for a selector switch, but it should fit other styles as well. The base is placed under the switch the same way it would be attached to another object. The threads may be tight the first time they are used but it should break in and be easier. Print the cap with the end down and threads up. Print the base with the smaller inside diameter down.
Download Model from thingiverse
With this file you will be able to print Selector Switch Cover with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Selector Switch Cover.