Making a Bump Key

Is it possible to make a bump key from something other than metal?

MI69 years ago
whats a bump key ?
ll.139 years ago
Rishnai9 years ago
Depends: how sure are you that your substance won't break off in the lock or shatter when hit? By all means, make one out of PVC, or the PET (?) stuff that they make sodabottles out of. Try it in a cheap padlock or something. If it doesn't break, problem solved. I would worry about fatigue over time, though. So don't use it too many times before making a new one.