SimchaMinute by Rabbi Avigdor Miller
Teach the child to love Mitzvos ("I love Your Mitzvos more than gold" -- Tehillim 119); not merely to look at the Mezuzah, but to love it.
Suggest: "Don't we love the Mezuzos?" introduce into his mind the attitude of loving the Tzitzis, loving a Succah, loving the Matzah, and loving a Sefer. — Career of Happiness