Binoculars, eye glasses, ski goggles, snow goggles, Tripod for cameras, selfie sticks, laptops and portable media players, cell phone protective covers and cases, smart watches, sports whistles, directional compasses, radar guns for sporting events, sport training goggles featuring electronic sensors and downloadable software to analyze and electronically display results of muscle contractions, running speed, and bat swings; Protective sports helmet accessories that attach to the helmets, nam...