Edward Ingold , Apr 13, 2011; 08:13 p.m.
Are you looking for a stand or a bracket (that mounts on the camera). Stands are easy, other than being bulky. Manfrotto (and others) make swivel adapters which attach a flash to a standard 5/8" stud. You need to insulate the shoe with tape or something.
There are also a lot of double flash brackets. You can start by looking at Stroboframe (www.bhphotovideo.com). The best can be found on www.ReallyRightStuff.com. Sadly, things that work consistently are usually on the expensive side. If you start cheap and work your way up, you'll wind up spending 3x as much as you need to on the way ;-)