A birthday card that I designed for the Dow Chemical Company using STYROFOAM Brand Foam is featured in this week's Crafts 'n things weekly newsletter.
My card has a three dimensional cupcake that can be made out of some basic foam shapes....
A full list of supplies and instructions can be found here.
You can customize your card by using any cupcake paper, 'icing' color and 'sprinkles'. Maybe you'd like to match a theme, it's easy to do!