ground-up plastic bags este instructables self-lubricating replacement bushing Start melting plastic "stewing" plastic bags from this instructable this Instructable this Instructable este instructables molding JB Weld epoxy http://www.instructables.com/id/HomemadePlastic/ Instructables tutorial Plastic "Smithing" at Instructables Instructables Instructable self-lubricating replacement bushing Instructable Start melting plastic