Holiday Projects: Galvinized Duct Wreath There are fun and innovative ways to decorate your home during the holidays - and we'd love to open your eyes to them. Bend galvinized duct to form a wreath. Hold together with duct tape. Glue balls to wreath with hot glue. Insert wire in back of wreath to hang. Note: plastic ornaments are easier to work with and make excellent filler for the wreath.