Light Up Goggle Mod

Step 4 Install the wax paper and tin foil

Center the cap over the foil, and use the holes to mark the center. Cut out a square to keep the leads from shorting. I also cut some 1cm slits in the edge to make it easier to fit in. Push the foil in place, then set the LEDs in their holes. Cram the wax paper in on top. It holds itself in place pretty well.