I made this Lego Star Wars Birthday Cake for my son's golden 6th Birthday. He turned 6 on the 6th of January! He LOVES Lego Star Wars right now, so I knew that was the theme I wanted to go with. I'd never used fondant before and figured this would be a good time to attempt it.
I did a little research online, but I wanted to come up with my own original design and this is what I came up with. I baked 2 cakes...devil's food cake (out of the box) each in a 9 by 13 size. The first one I cut up into big Lego Duplo block size pieces, then frosted just the tops of them. (I tried frosting all sides, but they started falling apart) Then I pulled out my marshmallow fondant that I'd made a few days before and got to work coloring some of it blue, some gray and leaving the rest white. I used Wilton food coloring gels. Then I gradually rolled out small pieces to cover each Lego. I cut out the Lego "dots" with a tiny cup kind of like an old film container and painted a little water on each one to get them to stick.
Next I frosted (with regular cream cheese frosting) the other cake and put real Legos all around the bottom, then gradually pieced together where I wanted the big Legos on top of and around the cake. To hide the imperfect bottoms of them I piped around most of them with frosting in a small star design.
To finish it off, I added my son's mini Lego Star Wars figures (couldn't find Darth Vader anywhere...darn!) and added his name and stars to the cake board (a cardboard piece covered in silver wrapping paper).
It actually turned out better than I thought it might! He and his friends LOVED it! Half of them even ate the fondant...I had to have a piece with the cream cheese frosting.