get a nerf gun and put one of the mounts on that. shoot your friends while getting it on camera. i saw that once.
but seriously, two of my friends have gopros, both have the legit pole mount made by gopro (i think its the handlebar/seatpost one). One of them also has an old pole that he cut down so he can stick the pole mount on the end, its really easy to shoot with it. or you can go with a diy method, should work just as well, can't really go wrong.