Needing to strap my sunglasses firmly to my noggin, so I could fall out of my kayak again, I had to make something quickly. Here’s what I did:
Step 1. Cut strip from dysfunctional wet suit.
Step 2. Punch a hole at either end
Step 3. Thread a rubber/elastic band through.
Step 4 Loop to loop
Step 5 Bring the loop over the end of the neoprene
Step 6 Insert the sunglass shaft and wind the rubber band around it to hold it on.
Step 7 Repeat on the other side AND VOILA!
Worked, too. Stayed on in spite of dunking!
Of course, smarter people than I have come up with better ways to do the same thing (even if they do take longer!).
Here’s one using paracord