1. Affordable cars (-$2000 new) they did this in India
2. Affordable housing (check out tiny houses on google, they are awesome! Also, shipping container homes)
3. Affordable education (university costs have skyrocketed so much, alternative models could be very profitable)
4. 3-D food printing (this is just starting, but there's much room for innovation)
5. Drone delivery (not just for shipping supplies, but for medical care and assistance)
Sex toys that double as hot pocket warmers. They will work with thermal heat and friction. Who doesn't want to enjoy a nice warm hot pocket after a short steaming climax?
Theses ideas MUST be realistic, profitable, practical, relevant to at least 2 age groups, used frequently by consumers and possible with today's current technology. Thank You!