GoPro Wrist Mount
Arm Band
I found an old Futuro Sport arm band. You can use any arm band, just make sure it is wide so the GoPro doesn't tip over on your wrist.
Add the Mount
I cut out the mount from the baseplate that comes with the GoPro, and hot glued it to the arm band.
Your Done!
Just make sure the strap is tight on your wrist, and your ready to film some awesome stunts!