Start off by drawing a template of 3D glasses, remember to make the template a lot bigger than you want the final earrings to be. Cut this out.
Draw around the template on to the wrong side of white shrink plastic.
Cut out the white shrink plastic glasses. Use an xacto cutting knife to cut the lens parts out.
Place small dots of blue tack around the glasses.
Stick the glasses on to a sheet of clear shrink plastic. Cut around the outside of the glasses through the clear plastic, but don't cut out the lenses.
Use a hole punch to make a hole through the center of the glasses. Punch through both the white and clear plastic.
Remove the white from the clear plastic and peel off the blue tack.
Repeat the previous steps so that you have two sets of glasses.
Shrink down in an oven until small.
Cut out small squares of red and blue (or green) acetate to fit behind the glasses as lenses.
Glue these in place to the clear shrink plastic.
Glue the white glasses on top of the clear plastic. You've now made a pair of mini 3D glasses.
Cut a length of chain, attach to a jump ring and attach on to the glasses. Attach an earring hook in the middle of the chain.
Attach a charm to the loose end of the chain. Repeat this to make a second earring and you're all done.