UPDATE: The plugs now can have an STL model taken from them, so you can do 3D models with it, or you can take out a logo that is not part of fontawesome. Next I will make it so you can also subtract a pngIf anyone here wants to learn a little bit more about how to use openscad I made this video. The same skills can be used to make anything that you want though. I even left in the parts where I mess up so that you know where things can go wrong.https://www.youtube.com/watch?v=Es6Jz32TTdo
Technical
PLA is the most bio safe, so if you are worried about that then you should use PLA
If not you can have a bit more fun and print in a flexible material! This makes it nice to sleep with and easy to put in.