The Magic Arm is just that, a magic arm to hold your camera, lights, bounce, flag. I use it with the camera bracket on one side and Manfrotto 035 Super Clamp($25, photo below) to turn a staircase railing, or the railing of a scissor lift, into a camera support. You could use it similarly to mount a camera to a bicycle handlebar.
I also use the Magic Arm with a Super Clamp at either end (the camera bracket is detachable) as a brace. For video and photo projects, the uses are extensive.
There are similar products, but this is by far the best. I’ve had two in my grip bag for more than a decade.