Not sure if it's exactly what you're looking for, but I suppose it doesn't hurt to suggest it - Write your name on your rocket
Putting your name and phone number/contact details on your rocket. In more than one place as well in case of separation, motor getting ejected unintentionally, etc. I write my name on my altimeter sled or av bay bulkheads and on motor casings. Often I'll run a thin strip of masking tape along a motor casing with my name and phone number. For rockets without av sleds or motor casings, I'll write it somewhere else such as the nosecone shoulder, coupler shoulder, parachute, streamer, etc. Acts as extra insurance in multiple scenarios, and never hurts to add. This last ROCstock I was able to return 2 rockets to their owners because the owners had written their names on them.
Another potential idea - Label your motors with masking tape after you build them
I like to build a bunch of motor before a launch, so to avoid mixing them up, or forgetting what's loaded in casings if I don't end up launching them, I like to write on a piece of masking tape what the motor is, what the delay is cut to, and what rocket it was intended for.
