I made a rectangle cake and traced on pictures of brobee Foofa that I printed off the internet. I made a huge quantity of buttercream icing and tinted it all different colours I needed.
Outlined in black with round tip and filled in the face with #16 star tip.
I decorated background of the Yo Gabba Gabba cake with the #16 star tip in multi colours. I think it would of looked better if I had done just one colour on the background