I was inspired by a Dora and Boots Birthday Cake I saw on this site. I've never done anything like this before but decided to give it a shot. I started by printing coloring book pages that I found on the internet. Dora, Boots and some balloons. I taped the images to a cutting board, then stretched plastic wrap across the cutting board and secured it with tape. It's very important to make sure the plastic wrap is very secure and pull it tight so you don't have any wrinkles!! Also make sure to free up some space in your freezer before you begin.
Mix up your butter cream icing. I used Wilton gel dyes and colored small batches of icing as I needed it. Begin by outlining the images using black or another dark color. Put it in the freezer for 15 minutes or so to set.
I used milk to thin the remaining icing down a bit before I continued. Don't worry about it not being perfect. Remember you're looking at the back side of the work! The plastic wrap side is your finished side. I piped the icing in to color each area then went back with a small rounded knife to smooth everything out. You want to be sure you don't leave any air pockets on the plastic wrap side! I popped it back in the freezer for a few minutes to set after each color.
Once all the coloring was done I left it in the freezer over night. The next morning I finished putting the final coat of icing on the cake building little mounds where I was going to put my images. Then one by one I CAREFULLY placed each one on the cake and pealed back the plastic wrap. Boot was a little hard to handle because his arms and legs were so thin. I saved the left over icing for just this reason. So I was able to go back and repair Boots.
For my first attempt I was pretty happy and my daughter loved that Dora and Boots were on her birthday cake!