The frosting I used for decorating is a Meringue Buttercream recipe from Martha Stewart. It's yummy, but it is much more time consuming than regular ol' powdered sugar based frosting. I chose this recipe because it stated in the recipe that it was good for decorating--which it completely was! I frosted the day before the party and the frosting held it's shape perfectly.
I used Americolor gel paste to color the frosting again (they really are the best!!!) The bottom layer was made using a large star tip (I forget which size.)
The middle layer I used a grass tip. It totally blew my daughters mind away when she saw that the frosting really was starting to look like monster fur!
The top layer was made using a smaller star tip. I loved how the colors turned out!