Below is a picture of the Transformer cake I made for my son's fourth birthday party.
I started with a standard 13 x 9 sheet cake. I used Wilton's icing colors to color the buttercream frosting that I made. To create the 'Autobot' and 'Decepticon' logos, here are the steps I took.
ONE: Find the images you want to use and print them out on plain paper (my images came from Google Images)TWO: Make and color your buttercream icing (I use Wilton's buttercream icing recipe)
THREE: Take an upside down cookie sheet and tape your images to it. Then, tape down waxed paper over the images (parchment paper would work here as well)
FOUR: Use a small round icing tip to trace the designs and fill them in on the waxed paper using the images as a guide
FIVE: Put the sheet pan into the freezer
SIX: After the design is frozen and your cake is iced, carefully lay the wax paper (icing side down) onto the iced cake. Carefully peel back the wax paper to transfer your design to your cake
(Thank you to my friend, Evelyn, for her teaching me how to do this)
For some reason I tried this same technique to do the 'Thomas' lettering, but it would not transfer properly to the foil, so I had to free hand it!
Linked up here: