This device is a sort of keyboard that would be mapped to all the buttons on a controller. This is a good solution because when a person uses a piano they are able to hit many keys very quickly with only one hand. It would be made of plastic and the dimensions would be approximately 8 inches by 4 inches.
This is a shoe system that has buttons on the bottom of the shoes. The two main joysticks will always be in contact with the ground and depending on the way the foot was moved would translate to moving the sticks. Also, the feet could be tilted left, right, front, or back to activate the eight different button that would also be mapped to the buttons on the controller. This system would be the same size as regular shoes and would be made of cloth and plastic.