Add a whole new dimension to your messages with these impressive 3-D cards. Jot a few lines of greeting on the base of the six-inch-tall card, which folds flat to fit inside the envelope included. The recipient need only slide a single tab to watch it unfold, and the rounded base balances it upright for display.

A marmalade mama cat struggles to corral her curious kittens in their picnic basket bed, a perfect subject for a 3-D card. All of these kitties are cute, but we especially like the one who is mesmerized by the blue ribbon.