After finding out what it was like to tie flies with a handicap, an article in the Autumn 2008 issue of FFF Flyfisher magazine caught my eye. A group from the Evergreen Fly Fishing Club in Washington has developed a device that can be attached to a vise they call the extra hand. It is a simple device that should be easy to build and if you get the magazine check it out. Here is a photo with the tools,
They will send you information on how to build some for your local PHW group, I know that I am going to try one. If you don't get the FFF magazine and are interested drop me a PM and I will forward you the information.
GJ