I'm the OP. I didn't find an exact answer to my question, but I found something that's probably better. [Can't post a link - https] account.microsoft.com/devices that lets you (1) see the location of your phone on a map, (2) ring your phone, and (3) lock your phone and display any message you choose (phone is easily unlocked by you). I tried all three and they worked like a charm.
Bear in mind that if a dishonest person finds your phone, they might use the information for identity theft. If they remove the SIM from your phone, they have access to your phone number, your name, and any other contact information you've already given...