I take my dog with me often, she is a trained scent dog, On our walks she sniffs out pot and other drugs. Also expended casings and small firearms. The best was a cigarette pack with a little weed and 70 dollars cash. I've picked up all sorts of hand tools, turtle shells, antlers, etc. Sometimes I'll carry my metal detector if I'm going to be near old house places. In parks I've found assorted change and jewellery.