1. Beer Cans
If you were the type of kid who liked to decorate their headboard with cereal boxes, candy wrappers, and beer cans, you can now cash in on that collection years later — especially when it comes to beer cans. For example, the Iroquois Ale that was brewed in the '40s ranges anywhere between $50 and $1,000, as does the Park Premium Beer, which sold for $1,000 in auction just this February.