I purchased one of these and have been using it for a few weeks and it works a treat.
http://www.ebay.com.au/itm/Angled-Mi...item43b15fcc09
My DSLR doesn't have a flip-out screen, so you just attach this to the base of the camera, and the front surface mirror becomes a flip-out screen. No more crawling on the ground!
I have no association with these guys, just very happy with the thing.