Amazon.com: Action Mount Sport Camera Adapter w/1" Ball for RAM Mounts - Universal Conversion Adapter | This Vertical Adapter Allows You to Use Sport Camera with Any RAM Style Mount. : Electronics
RAM MOUNT Double Ball Adapter Double 1" Ball Adapter | Team Dream Rides
RAM Mount Adapter - Grab Handle / Bar - Jeep Wrangler JK JKU Unlimited (2011+) | eBay
RAM Mount Double Socket Arm w/Dual Extension Ball Adapter [RAM-B-201-201U]