Sure, but why invite trouble? Just send the postcard without a return address and only sign it with your first name. It's really not that difficult considering the times we're in. There's a lot of people who aren't right in the head. What happens if they come to the Trump supporter's home, but they aren't there? Only their wife or teenage son or daughter is home. Do you think they'll be just as prepared as you to protect themselves? It's just best to play it safe is what I'm saying. Don't invite trouble.