I'm often asked for fun cake designs for an adult birthday party cake.
I always return the question with "what do they like to do?". Many times the answer is "watch tv", "watch sports on tv", "watch movies on tv", and so on.
So a television cake would be fun. You could use a rectangular cake and make the cake be the tv screen.
Here is an image of another fun idea - asleep on the sofa with the TV on - sound familiar? Create your decorations out of fondant or use toy sofas and people from a toy dollhouse collection.
Create a cake to look like a remote control using candies as your buttons.
Show us your great birthday cake and tell us how you did it!