I discovered, when my son turned three, that kids love shirts with their age on them. It's a way to tell everyone how old they are now. I think it's only cool with the 10 and under set, but with them - great birthday gift. I've made them each year for my own boys, their friends and family. Here is one I made today for a little cousin who has his first birthday coming up on Halloween. I used the traditional fusible web, machine applique method.