I've heard of several people doing this. I feel a little torn on it. One side of me says "Well yeah, its a BIRTHDAY celebration. Why not have a birthday cake? That would be a fun way to help kids connect the meaning of Christmas." And the other side of me says "Ummm... that seems cheesy."
Have you done an actual birthday cake for Jesus before? Did you sing the birthday song and everything? Or did you put more of a Christmas twist to something like this?