When it comes to hiding things, this can be done in many different ways. Camouflage or concealment are 'Key'
This fake inground sprinkler head offers a great hide, or even a place to put a set of spare keys or maybe an emergency USB flash drive. It looks like a regular sprinkler head and the tough water-tight plastic case holds a golf sized pencil, log papers, small swag or even multiple keys.
Looks like a regular sprinkler head
Tough water-tight plastic case holds multiple keys
Screw cap
Dimensions: 3.5" x 1.3" dia. (8.9 x 3.3cm)