I have twin boy/girl grandchildren and each year I have made cakes that have coordinating characters. This year was Abby Cadabby and an Elmo Birthday Cake from Sesame Street. An Elmo pan is a Wilton Pan was easy to find. The face is made with a star tip, smooth eyes and the fur with the hair/fur tip. The only thing I would do differently next time is more outlining first.
I have made a few cakes before, but am definitely an amatuer. I used Chocolate cake mix for the cake and I made my own buttercream frosting and used Wilton coloring to get the rich red and black colors which would be almost impossible with regular food coloring. I also used the cake release in the pans to prevent sticking.
The twins loved their Elmo and Abby Cadabby Birthday.