Not to reinvent the wheel but my mother who has difficulty handling small objects was having a hard time with the other ear protectors I downloaded and printed so I designed this to be very easy to hook the elastic but difficult for the elastic to fall off. She says she likes it a lot better.

Prusa

I3 MK3S

No

No

.2

Printed first layer 20 degrees hotter to ensure good adhesion for the nose of the hook.