Make a board game about your child's life. Each space on the board can mark as accomplishment your child has made since he/she was born.
Start at the beginning, with the first time he/she smiled or when he/she rolled over, and move on to include the first book he/she read to you and the first time he/she went to nursery school or camp.
[Source: Raise Your Child's Self-Esteem! 99 Easy Things to Do]