Simple categories matching throwaway:

• article,
• item,
• product,
• material,
• container,
• syrinx,

Members with property throwaway:

• food_package,
• bottle,
• chopstick,
• old_shoe,
• toothbrush,
• newspaper,
• plastic_bottle,
• polystyrene_plate,
• cellophane_streamer,
• disposable,
• head,
• satin_ball,
• razor,
• plate,
• napkin,
• cup,
• hide,
• magazine,
• disposable_syrinx,
• battery,
• plastic_spoon,
• packaging_material,
• protective_cover,
• happy_hat,
• old_sock,
• tinsel,
• disposable_cup,
• camera,
• pen,
• plastic_fork,
• scaffolding,
• junk-mail_catalog,
• toilet-paper_roll,
• plastic_cutlery,
• flashlight,
• disposable_razor,
• cutlery,
• egg_carton,
• copy_paper,
• paint,