Top 10 Dunks of the Month! - YouTube
I think these are travels:
#10 by Mikael Pietrus. If pause at 0:26, Pietrus establishes his left foot as the pivot. He then lift his left pivot and then returns it to the floor.
#8 by Timmy Duncan. If you pause at 0:45, Duncan establishes his left foot as the pivot. He then lift his left pivot and then returns it to the floor.
#4 by Blake Griffin. Again, if you pause at 1:48, Griffin Duncan establishes his left foot as the pivot. He then lift his left pivot and then returns it to the floor.
Do you think these are traveling violations?