Bake marbles at degrees for 20 minutes (for more cracking-look, bake at 500 degrees for 30 minutes). Remove and carefully drop into pan of ice water. Glue end caps to finished marble (w/starter rings) to create bracelets, earrings, pendants, ornaments
Cost of shipping a dimensional object wide makes this something to make on site. A roll bender, 2 steel pipe and 6 pvc pipe are the main materials. The larger the diameter the higher the yield in the area.