I started stamping when my little girl was 3 and little boy was 1. At that time I started matching the card to the theme of the b-day party usually a variation to the invitation that was made. That rule has gotten me "outside the box" on several occasions. For instance, for her last party (9th b-day)we had a magic theme--Her card was bunny shaped (with googly eye, cotton tail) which came out of a black hat. Both my kiddos first b-days had merely a balloon theme. So my son has balloons on his first b-day card.
Annette
http://stamponthis.com