My kids are having a blast making cards and mailing them to their cousins with the puzzle pieces. If you missed that post please take a look here. I started thinking about older kids. Puzzles might be to silly for some kids older than 10. Instead, encourage your child to choose 2 or 3 cousins or friends and start a story letter. Help them establish what order the letter should be sent and write instructions for all participants. Each child will add a line to the story and then mail it to the next in line. By the end of the summer you should have a pretty funny story. Make a copy of the finished product and have a book signing party.