K'nexpert
A K'nexpert is someone who makes K'nex look like art, while you’re still trying to make it look like something that doesn’t fall apart.
My K'nexpert dad built a car. I built a toy that looked like a car but couldn’t move.
That K'nexpert made a dinosaur. I made a blob that looked like a dinosaur but couldn’t roar.
My K'nexpert brother made a tower. I made a stack of blocks that fell over.