Related Clues:

• They may be copied for a guest
• Items sometimes locked in a car (oops!)
• Door unlockers
• Custodian's ringful
• They'll open doors for you?
• Ring jinglers
• Lock-openers?
• The sort of house you get in the Irish Sea
• Are they needed to open the house in the Isle of Man?
• Man's house with the lockers
• House of Man?
• Might they get one into the house of Man?
• Man has a house that locks
• You don't need them for canal locks
• Data entry aids