From one or more of the solutions to problems that you Brainstormed, Researched, and Experimented with (could be the one you picked from the previous Challenge, or a different one altogether), create, test, analyze, and iterate on prototypes for your solution
Use your prototypes to test technical viability/functionality of your product idea(s)
You can work with fellow classmates, your instructor(s), your family, and anyone else who might be a potential customer (AKA anyone)
Be sure to try out all the Rapid Prototyping phases:
Tactile Prototyping
Design Prototyping
Engineering Prototyping
Make revisions to your prototypes based on the information gleaned, and continue iterating and testing prototypes until you feel you have a final product ready to publicize/manufacture
Document all iterations, changes between iterations, etc.
To receive credit on this challenge, submit the URL link to the page on your portfolio website that documents your project