Helicopter in Lego Duplo

I remember this one being particular fun for Lana because of the spinning rotor on top – placing the block on top gave a handle for spinning the blades. Several different Lego Duplo sets have some kind of spinning piece which could work for this, I think this one used here (a red square) came from a space crane set.  The front rounded orange piece is from a Kid K’Nex set. Another one we should retry now that we have more pieces.