Recently we managed to get this video from a russian baller whoose height is not more than 6 feet. Nevertheless, he can dunk the ball into regular rim easily. He can do dunks in almost all possible ways: between the legs (! - you rememeber, this was the dunk that helped Kobe Bryant win the SlamDunk Contest in 1997), over people, 360, windmills and so on.
So let us not abuse your patience - just watch and enjoy!