Random trash which could drop from monsters, perhaps even a lower density than silver:

• wooden spoon
• silver cutlery
• dried tobacco
• handkerchief
• ball of twine
• rope
• copper necklace
• stone idol
• bone comb
• hand mirror
• dice
• bedroll
• candle
• chunk of wax
• horseshoe
• dust
• honey
• mead
• oil
• garlic
• cheese
• apple