I made this angry birds cake for a little girl who was turning 7 she is in love with the game. She wanted a square cake & she wanted it choclate with buttercream frosting. So I made choclate square cakes & stacked them with choclate frosting between the layers. Than I iced the whole back ground with blue buttercream her favorite color & swilled it with the back of a spoon to give the background some movement & texture. I made the birds & decoration from fondant & chocolate & the sling shot was pretzels dipped in chocolate & doctored with bits of fondant. I didn't even know this game prior to this cake Now my whole house likes it.