Here's something helpful from Freebies Guide Lee Seats:

"The Polly Klaas Foundation Missing Child Center offers a free child safety kit called "How to teach abduction prevention without scaring your child (or yourself)" for families with children. The kit includes 24 pages of guidance for parents and the means to privately document fingerprint and DNA. Please only request the free child safety kit if you intend to make use of it. Read the offer profile for the details. (US by mail, International by download)"