However, repeatedly moving the glasses from eyes to my forehead eventually snapped them in half. I had previously fixed one of the broken ear pieces with a bit of super glue, but the same method did not work to repair the broken frame. Since there wasn't enough room for tape, and I'm too cool for that jazz anyway, I glued a pair of strong permanent magnets to the frame to connect them together and replaced the ear pieces with an elastic strap. The glasses can now be put on by pulling the strap around the back of my head and bringing the two lens near each other. The magnets do the rest of the work...
Step 1: Necessary Parts
Safety Glasses - They don't need to be broken, but then this would be kind of pointless.
2 Small, Strong Magnets - These are used to easily connect/disconnect the two frame pieces.
Elastic Strap - I got this by cutting the unnecessary over-the-head strap from a common headlamp. Using the strap is easier than standard ear pieces because of the front magnet design.
2 Small Open Slit Rings - This kind of like those small cheap rings that attach a keyless remote to your key ring.
Needle and Thread - I needed to sew the elastic strap back to itself to make a loop for the metal rings.
Precision Phillips Head Screwdriver - The screws that hold the earpieces to the glasses frame are tiny!
Needle Nose Pliers - Used to Reshape the metal rings into Ovals.
Soldering Iron - Used to seal the slit in the metal ring
Super Glue - To connect the magnets to the frame.
Step 2: Remove the Ear Pieces
Step 3: Preparing the Metal Rings
Step 4: Attaching the Strap
The metal 'ovals' can then be run through the screw hole in the eye glass frame. This was the best way I could come up with attaching the strap to the frame.
Step 5: Sealing the Rings
Step 6: Attaching the Magnets
You may need to sand the broken area down before adding the magnets if they aren't straight.
Step 7: Keep Those Eyes Safe
As a final note, my wife says these are still super dorky... but way better than taping them back together.