This Lego Birthday Cake Idea uses two 10” square cakes stacked and two 6” square cakes stacked; they are both covered in green fondant. To make the Lego circles, I rolled fondant thick (approximately 3/4” thick) and used a 1 ½” circle cookie cutter. The circles were then attached to the cake with a dab of water. I used various colors of fondant to make the little Legos on the cake. They cover up imperfections and the kids love to eat them!