A wheel comprises a main body and is provided with at least one reinforcing structure which increases the strength of the wheel. The prosthesis can include a left prosthetic body and a right prosthetic body that interlock with one another. The control circuit receives a write control signal. These advantageous results are achieved in part by depositing an additional floating gate layer over previously formed floating gate regions and then using the spacer etch to form the extended floating gate regions as sidewall structures and sub-lithographic floating gate slits. The system includes vehicle lamps according to the present invention, and can include sensor processors located within each of a plurality of lamps, or sensor processors that are centrally located within the vehicle. The two molds are placed together, and after the adhesive sets, foam is introduced into at least one cavity formed when the molds are brought together.