Related Clues:

• Bill holders
• They may be behind pictures
• Bank vaults
• Keepers of jewels
• Crackers' targets
• Works the field
• Is this why one farms, because there's money there?
• If one goes farming there is money there
• One has farms becuase there's money in them
• One is cultivating for the money in there
• What the farmer does to make them keep their money there
• Must be worth a lot to have to be made so secure in them
• Containers that may be cracked
• They may be hard to crack
• Places for rings, maybe