My 8 year old has made all kinds of things with his legos and K'nex pieces. He's made cars that run, candy dispenser, and this thing that goes down a zip line and when it hit the end of the line it drops a parachute guy. I just asked him if had the pieces he needs to make this...he said I might have most of them...maybe not...I don't know..You'll have to find the instructions and see! LOL
Thanks! My boys loved this.