K'nexpert
A person who builds with K'nex so good it looks like magic, but also looks like your math teacher’s worst nightmare.
My K'nexpert cousin built a spaceship that flies. I just built a ladder that falls apart.
That K'nexpert made a dragon that roars. I made a snake that hissed and then fell over.
My K'nexpert brother built a castle. I built a pile of sticks that looked like a castle.