Step 1: Items Needed:
White silicone tubing - 3/16in inner diameter, 5/16in outer diameter, 1/16in wall.
Paracord - 36 inches
Lighter - (or other source of fire to melt ends)
Rounded cord lock
Note: Hobby shops also have loops that are used for holding glasses. The loops are actually one loop with a crossbar to make a figure 8. This can be used in a configuration instead of the tubing.
Step 2: Cut Tubing Into 2 - 1 3/4 Inch Pieces.
Step 3: Apply Adhesive
Step 4: Insert Paracord Into the Tube Ends.
Push the paracord into the end with the adhesive while keeping your finger on the other end.
The adhesive will form around the paracord, If after the adhesive dries, and the paracord slips out when pulled, repeat this step using the same parts. The adhesive may not have filled enough around the cord and may not have made a good enough bond. Repeating this step will fill in the gaps and make a better seal. You may also try to roughen up the inside of the tubes with sandpaper (not shown). Other items can be used to clamp the end around the paracord as well.
Repeat Step #3 and Step #4 to set both ends.
Let the adhesive dry overnight.
Step 5: Add the Rounded Cord Lock.
Step 6: Slip Ends Onto Your Glasses.
Adjusting the cord lock will loosen and tighten the cord around your neck or head. Tightening allows for your glasses to stay on without dropping off while loosening allows for your glasses to dangle around your neck or be removed from your body.