I think that you will find that after a few years wear, most Cessna keys become interchangable!
It has always amazed me that aircraft keys are so low-tech, bearing in mind how expensive the aircraft is. The locks on my desk drawers offer the same amount of security.
Even my car key has a built-in transponder to inhibit the ignition. We leave aircraft unattended, protected only by locks that yield to a small screwdriver.
The value of the aircraft is not reflected by the quality of the locks, and that applies to new aircraft as well as old.