Varavon's new Armor adds a few extra handles as well as accessory mounting points. It's a cross between a cage and a hand held stabilizer. I think it looks pretty cool, but i'm not sure how you actually set the thing down. Either way, it keeps the camera looking fairly low profile while still adding functionality to shooting hand held, I think it's pretty cool.
Thinking about what I have laying around to simulate a DIY, it reminds me of a Photographer's Rotating Flash Bracket. Maybe throw a handle here and there, drill a few holes... Check this one out by Custom Brackets.
CB Junior Rotating Flash Bracket Kit