Remind your child who has been acting up (or naughty) that Santa and his elves are watching with this Naughty List Notice FREE printable. Start your letter with a personalized greeting from Santa himself.Write "Dear" and your child's name. Grab a printable Santa warning letter to remind your kids that Santa is always watching! Browse our template gallery for an example of how to write a letter to Santa. This is a free printable naughty list letter from Santa. It has a message that can be used for any child (boy or girl) that is acting up at Christmastime. Explain specifically what the child did that deserved rewarding. Little Lydia Vincent was risking being on Santa's naughty list this year. As I write you this letter I am saddened to not be able to drop off all the wonderful gifts you wrote to me about and asked for.