Reddit mentions of Rogue FlashBenders ROGUERESM Small Positionable Reflector

Guaranteed she doesn't have this, it's brand new:

Rogue FlashBenders

Of course, she would need to have an external flash unit with a bounce head to make it worthwhile.

In the box:

• Fenix PD32UE flashlight
  
• 
  Ray-Ban 3025 Aviator Polarized sunglasses
  
• 
  Zippo Slim circa 1960
  
• 
  Nite-Ize S-Biner with County Comm Titanium Widgy Pry Bar / Ti split rings
  
  
• Leatherman Skeletool CX
  
• Saddleback I.D. Wallet
  
• LGE Nexus 5
  
• Pilot Precise V7 RT pen
  
• Clairefontaine pocket notebook
  
• Klipsch Image S4i Rugged
  
• Spyderco Techno pocketknife
  
  The camera pictured is my beater/backup, a Nikon D7000 with a Nikon 35mm F/1.8G AF-S DX lens. These were all taken with the camera I use on assignment - a Nikon D800 with a Nikon 24-70mm f/2.8G AF-S lens, an SB700 speedlight and a Rogue Small Flashbender.
  
  I leave the D800 at home when I'm not working, but I keep the D7000 in my car or on my person pretty much all the time. Everything else here goes almost everywhere with me.

No problem. :)

Ok, so flash is pretty easy. My setup might be a bit outdated, but here is what I use currently:

• Flashes
  
• Transceivers
  
• Controller
  
  I have 3 of those flashes, they're really pretty great if you aren't too snobby about brands. I believe Yongnuo has flashes now with the transmitter built into them, but I have never used those and the only time I've seen them in action it didn't go super well. I'm sure they're fine, I just can't recommend them.
  
  So basically you put the controller on your camera. You put each flash you want to use off camera on the transceivers. The controller lets you adjust each flash's settings remotely and triggers them. It's awesome.
  
  If you generally don't know what you're doing with flash for the reception, it's generally best to bounce the light off the ceiling. Point the flashes roughly upward and fire away. At receptions with a defined dance floor you can get pretty great results by placing them in a couple of the corners. Your light might come back kinda yellow. If you don't want to worry about using gels on your flashes then just keep an eye out for it and adjust the white balance in Lightroom after the fact.
  
  Aside from flashes you will want some modifiers to place on them. When I was starting out the two that I used are these (these aren't the exact ones, but they're close):
  
  
• Flashbender
  
  
• Baby Softbox
  
  So there are probably better modifiers to use, but these are cheap and they work pretty well at diffusing/directing light. The softbox is great for portraits and I frequently would use the flash bender to direct light gently over a wide area, like when the toasts are going on or the bridal party is entering the room or the dance floor. When used correctly you should get pretty great lighting and avoid hard shadows.
  
  Anyways, how I shot those photos. You're generally right. I love shots like that (probably too much), and so I do them all the time. The general idea is the same for all of them, soft light in front and a bright light in the back. Using the specific equipment I listed above, my usual MO is to put a bare flash behind them, typically on the ground (using these)or on a stand as low as possible to the ground. Point it at the couple and slightly upward (photo 1 is the exception, it was pointed essentially straight up to make the gazebo light up like that).
  
  Set up a flash in front of them. In most of those photos I used the flashbender modifier on the flash pointing at the couple to direct but diffuse the light. It helps it look a bit more natural. Generally you want to position it in a way that the shadows aren't too distracting, so do it slightly off to the side to get more natural lighting. Obviously I messed up in a few of mine but it is what it is and most people don't even notice. We're always our own harshest critic.
  
  Next is the settings. This is honestly the toughest part in my opinion. You need to expose for the background you want and then use the flashes to achieve the lighting you want on the subjects. I don't know how to describe this, but the easiest way is with photo #6 on my website. I exposed the photo for the city behind the couple and got the look I wanted, THEN I added flashes and whatnot. General rule of thumb is the light behind the couple should be one step brighter than the light in front. That way you get the glowing backlight effect.
  
  Thanks for the compliments on the photos! I hope this helps. I'm sorry if I did a bad job of explaining things, just ask me to clarify anything you don't understand.
  
  EDIT: All this being said you don't NEED off camera flash. I've shot entire receptions using on-camera flash. The most important thing to remember is you just want to diffuse the light in some way. When you're using flash on camera you typically achieve this by bouncing it at the ceiling. Practice this at home, it usually works pretty well!
  

Are the flash attachment reflectors useful?

Things like this:
http://www.amazon.co.uk/Rogue-FlashBender-Small-Positionable-Reflector/dp/B003UOIMBW/ref=sr_1_6?ie=UTF8&qid=1422190550&sr=8-6&keywords=flash+reflector

Are there any recommended ones?