 "GoPro Roll Bar Mount" "Gopro Mount - Promo-Optique"
"la Roll Bar Mount de GoPro est un kit permettant de fixer vos cameras Gopro (Motorsports, Helmet et Surf hero) à un tube de 1.4" à 2.5" de diamètre ." 
 "GoPro Headstrap Mount + Quick Clip (GoPro Official Mount)" "Professional Video Accessories | All Tech Toys"
"Includes a Head Strap and a Quick Clip for a variety of head- mounting options. Fully adjustable to fit all sizes, the Head Strap can be worn over a helmet or directly on your head to capture footage from a headlamp-like perspective. The Quick Clip enables ultra-compact, low-profile mounting, and can be used to attach your GoPro to a backwards baseball cap or other 3mm to 10mm thick object." 