I like that you are choosing the concussion helmet as your final product idea. You mentioned that you liked sports and that this is a product you are interested in. I believe this will make your final presentation of the idea much better than any of your other ideas.
I wish the nosquito pods were an actual product! That would be really useful in Minnesota and I bet there would be a large market for it during the summer months. I think its interesting that there is a shirt out their meant to repel mosquitos.
What if there was technology that could be put in helmets to measure players for concussions? Would the NFL pay for helmets like these and have all their players wear them? Would they become required for every team as a safety precaution?