One of our twin daughters was mesmerized by Mark's inventions via youtube. So when she saw him advertising crunchlabs, she jumped up and said THAT IS WHAT I WANT FOR CHRISTMAS!! A few boxes later, and she still loves getting them in the mail. If she is having a bad day, this makes it all go away. So thank you for sharing your love of engineering with us.

My son had so much fun with this build. We let him take the lead on this one and he did a great job. He is only 4 and feels so accomplished once he is finished. He even brought this one to school to show his friends. They loved it!