Artist Margarita Benitez really wanted a Nomad Brush for her iPad but didn't have the cash for the actual thing, so she did the next best: she made one herself. Using an old brush handle and some conductive thread, she was able to assemble a working brush, and says it works better than expected. Her entry at Instructables has all of the instructions if you want to give one a shot yourself.
I would say that if I tried one myself, I'd probably go with a different brush handle -- hers is a little thin for my tastes, though each artis
