I entered my class into a contest that required students to design a new product. They had to do research on why their product would be useful and include any pertinent information about it.
One of my boys "designed" a Football Jersey with "springs" built into the shoulder pads. What a GREAT idea! He did his research on head injuries from playing football and the amount of concussions players receive throughout their professional career. Having these pads that he designed built into the shoulders of the Jersey would cushion the head as it "bounced/snapped" in all different directions while playing the game.
Although he didn't win the contest...I really think he's on to something!