I took the airframe from the take bin at a launch, took a nose cone I had lying around, rolled a paper cone around it, put nose weight. Made the engine mount out of a few layered penny rolls. Used some spare centering rings from an alpha kit. Used a fin design scheme from a custom rockets kit. Cut them from a slightly thick sheet of balsa from a model plain kit. The upper fins are just cardboard. I rolled the launch lugs from penny rolls. It resembles a sounding rocket, which is why I used the nike name. The SB part just stands for scratch built.