I did think about it
unfortunately unlike the many biro's I could find, I could only find 2 batteries (which I needed to power my camera)
( Furness Better than a bowl of sloppy sick, Wed 30 Jan 2008, 21:32, archived)

I see cabling in the background
that could be draped across this impressive erection ;o)
(Pan Dimensional Mouse Currently existing in 13 dimensions as of, Wed 30 Jan 2008, 21:39, archived)