Introduction - DIY Gimbal Mount for Gopro Session, Etc. : 5 Steps (with Pictures) - Instructables
UPDATE: How to do a DIY MōVI? 2-axis digital stabilized camera gimbal from 100$ | Underwater camera, Gopro, Diy camera
Amazon.com: Handheld Gimbal Adapter Switch Mount Plate with Gimbal Counterweight 86g for GoPro 11 10 9 Black Camera Stabilizer Adapter Clip for Go Pro 11 10 9 8 Camera Accessories : Electronics