This was my first prototype. Yes, those are popsicle sticks, and those are rubber bands at the top. It took me 30 minutes to do this, but it worked. And it proved to me that it worked. And it justified the next couple of years on this project.
Nikolai Begg designed a device that fixes a one hundred year old problem with laparoscopic surgery.
The entire TED talk is fantastic, but my favorite moment of the talk is when he shows his jury-rigged prototype. It's a great example of testing an idea by making it happen as soon as possible.