When I was a kid, my parents had some unique ways to help me pull a loose tooth. The most effective one I remember was tying a string from my tooth to a door and then slamming the door. It usually worked.  

I don't recall ever needing a trick to help my own kids with their loose teeth. One thing I would NEVER do is tie a string from their tooth to the back of a Camaro (mainly because I don't own a Camaro...plus it seems kind of cruel).

Even when I watched this video of a dad doing that to his kid, there was that sense of fear that he was going to pull his kid's head right off. Fortunately everything worked out OK. That kid was much braver than me.