I recently had used my Orbis ring flash which made me think this would be a great light for this costume, as well as easy to incorporate. So I cut a hole into a large poster board and taped it on to the Orbis and speedlite so I could wear it with the neck strap that the Orbis and camera have. Then I attached the Canon Speedlite 580ex ii with a off-camera TTL cord to a Canon Rebel T2i. The settings were iso 100, f3.5, shutter speed 1/60, and the flash was set to 3+ on TTL.
These are some of the images that I came out with. They aren't the best but I they're are a good start. I was very impressed by the great quality of light the Orbis ring flash give in a event setting and how even it was on the subject. I think for my next event shoot I will attempt to shoot it with the Orbis even thought it's a bit bulky compared to a on camera flash. A few of these images remind me of Kareem Black's "Feels Good Lets Go" work. To see more from that night go to my Facebook page.