What I used was plumbing fittings, so they where a bit heavy to wear, but just to have them around your neck or on top of your head, really adds to the costume. They are an awesome set of goggels.
Sew some pieces of leather to wrap the plumbing fittings in, before wraping the fittings glue bolts around the fitting. Make holes in the leather sleave so that when you fix the sleve to the fitting the bolts will poke through.
Glue the sleaves in place.
Once the leather sleve is attcached screw dome head nuts onto the bolts to cap them.