Energy from Spring Shoes, sound energy storing device,from moving car and use of spring in mobile phone.

Make shoes in which spring are  use in toe. when person move spring move up down that will sooth for the person and as well spring energy can be used for any effective purpose

Make a device that can store sound energy. while speaking in the room that energy can be store in the device and can be used for any purpose. AND we can use those devices in public places.

 In moving car we can use a fan that can run turbine and that energy can be use to play music lights etc.

Make a phone in which there is a setup of spring . that can help to charge a phone battery. when we will give to and fro mottion that spring will move and battery will be charging.