Here's how to make the fondant.
(There's a bunch of instructables on this...so check them out if this isn't clear enough)
It's fun to mold...and great for cupcake toppers!
You'll need: Powdered sugar, marshmallows and water.
Put 4 oz. of marshmallows in a microwave bowl
with 1 tablespoon of water.
Heat them up in the microwave for about a minute until they are puffy!
Stir them up.
Add powdered sugar until smooth and able to handle.
(I didn't measure...you just have to keep adding it until it's clay like enough)