I buy second hand cameras and they break. I continue using them until I can use them no more.
I had a Hasselblad with a non-synching lens, a light-leaking back and a shutter that fired intermittently.
A Rollei SLX had a slippy back. I held it on with a piece of string. It worked - some of the time.
These are the pictures from those cameras.They're Broken Camera Pictures.