Ah, the joys of being popular! Nowadays, technology makes it relatively easy to mass-produce customized cards. Your daughter might, for example, design and decorate her own Valentines postcards and print them up at your local copy shop. Just divide an 8 1/2-by-11-inch sheet of paper into four postcards, have her draw, paint or collage to create four different designs, then color copy them (about $1 per copy, so each postcard runs you about 25 cents apiece) and cut them apart.

But perhaps an even more fun kind of card, from a kid's point of view, is one that features a treat, as well as a greeting. For cards that come bearing sweets and that are relatively quick to mass-produce, check out Butterfly Cards, Bee Mine Valentines, or Lollipop Mice.