Ear Saver

thingiverse

I don't know what this is or how it works, but someone else must have printed it out for me. There are three different sizes to choose from, and the dimensions depend on how far apart the bumps are that stick out. If you want to customize the fit, I can share the original file with you so you can make any changes you need. I'm not sure why Thingiverse doesn't support 3MF files yet - it's hard to believe they still don't in this day and age.