List things that have no value at the dump site

Trash at the dumpsite are piled high in enormous mountains. The dumpsite boys crawl through it in search of cast-off stuff worth selling that has been tossed out by the wealthier members of society. It is the trickle-down theory of economics made palpable and smelly. It is a corrupt system and trash is the central symbol of the pervasive corruption throughout the city. Packaging, old food, diapers....have no value.