Word of (kids') Mouths

"Mom, can you send my teacher your website? She wants to order one of your books."
That's not necessarily something I expect to hear every day. Though it also didn't catch me terribly off guard. For years now, my kids have been some of my biggest marketers. As early as kindergarten, my daughter saw one of my bookmarks on my husband's desk and decided to take it to her teacher.
Sure, the teachers could see my signature line in my email responses to them too. But how much attention do you pay to the signature line in an email? If you're like me, probably not much.

So, when my son came home the other day and told me that his teacher wanted to buy one of my books, I knew it was because he had been talking about how "my mom is an author." Not a bad feeling. It's nice to know my children are proud of me. ;)
Then, when I sent a bookmark with my son, my daughter decided she needed one for her teacher too. And the tradition continues.
Later that day, my son's teacher texted me and asked which book was my favorite because she wanted to buy one to support me. I joked that it was hard to pick, but mentioned Rendersella was my latest and was really fun. She said, "That's what Alex suggested too."
Apparently, my son is not only recommending my books in general. He's giving titles. How cool is that?
What's a way someone has learned of you that caught you off-guard? Did your kids ever brag about you to their teachers?