Fishtails tutorial for flower sticks and devil sticks.
Additional notes: The first section is a description of the fishtail technique which may or may not help you with learning how to do it. I just thought I'd give some background. The main lesson starts at 2:15.
The last section from 7:35 is all slow-mo stuff from different angles that you can step frames through or whatever.
Music: Freddy Todd - Wave Therepy