Brushes and Combs Trash Please place brushes in your trash container. Toss Brushes & Combs in the Garbage Because they are oddly shaped and often made of mixed materials, they cannot easily be recycled. Toss unwanted hairbrushes and combs in the garbage. Metal Combs Are Scrap Metal Most metal combs are made of steel, which can be disposed of with other scrap metal. Ways to Reuse Use in Kids’ Crafts Kids can use brushes and combs to paint unique textures and paterns or use them with a sensory table for brushing or combing sand. Give to Animal Shelters Check with animal shelters and sanctuaries to see if they could use your old brushes or combs for grooming.