Phineas and Ferb is a comedy-musical animated television series popular among kids since its launch in 2007. The series deals with Phineas and his English stepbrother Ferb. The brothers embark on some new project every day. If your kid is a fan of this television show, then, make a Phineas and Ferb theme cake on his/her birthday. Look at the pictures below to see how Phineas and Ferb cakes look like. There is always option to be more creative with the design and decoration of the cake. Employ vibrant colors to make it look attractive and vibrant.