Just buy a sheet of these with only your first name and cell number printed and put them on everything you might want returned if lost. I bought a sheet of these for myself and my wife years ago and we both still have plenty left. These stickers will last for years. I even have them on my Yeti tumblers that go through the dishwasher a few times a week.
I also keep one of my wifes stickers on the back of my cell phone and she has one of mine on hers.
I also keep one of my wifes stickers on the back of my cell phone and she has one of mine on hers.