I made Jacob's bus costume out of cardboard boxes. The headlights illuminate and the red lights alternately flash just like a real bus!  The stop sign also swings in and out.  He loves buses; this was his idea to be a school bus.  Hands down, the charity of choice for us, if chosen, is March of Dimes.  Jacob was born 13 weeks early and preemies have a special place in our hearts.  Thanks for considering the bus costume!