scuba mask strap + clip

For some mysterious reason my SCUBA masks strap got ripped - while not even being used! Just like someone's bitten off a part of it, while also stealing one of the foldback clips or whatever they're called.

So instead of buying a new one from some reputable diving gear shop, I rather opted for risking my life with [yet another](https://www.thingiverse.com/thing:3052388) flimsy 3d printed SCUBA part.

To imitate the original strap's stretchability (which I'm pretty sure is a scientific term), I chose the stretchiest filament my extruder is able to handle, which is filaflex 82A. And I was surprised to find out that it's almost exactly as... stretchable as the original. Let's hope that it won't loose this property when getting in contact with salty water and UV light. So I didn't test this underwater yet but I'll update here when everything went well. And probably not if not.

The original strap (as can be seen on the pictures) has a wider center part which I decided to leave out i