Ive been looking for a particular piece to customize my rig. I dont know if it exists so I figured i'd post here in case anyone has run across it. 
  
Basically it connects 2 15mm rods in parallel on the top and bottom. Except the second set of 15mm rods I need it to swivel. So probably two 15mm rod pieces with swivel action so it can be placed at different degrees of angle. 
  
Basically like this item. 
http://store.redrockmicro.com/Catalog/mountinggear/microMount 
  
Except with the right ring parallel to the left and able to rotate to a 45 degree angle. 
  
Im trying to mount my vmount battery plate at a 45 Degree angle from the back of the rig on 15mm rods. 
  
Any help would be appreciated thanks! 
  
Edit* found this as a better example. 
  
http://www.amazon.com/Lanparte-Battery-Internal-Splitter-External/dp/B00ARABA9I/ref=sr_1_1?s=photo&ie=UTF8&qid=1393126744&sr=1-1&keywords=lanparte 
  
Basically what this does but I already have the plate and I want an additional set of 15mm rods parallel to the plate itself.