I had a turret of a Lanard tank left over. So I used it to customize a Hiss II. I glued a piece of plastic tube beneath the turret in order to have it movable.
http://s16.photobucket.com/albums/b2/Klausmerkel/Gi Joe Hiss II Customized/
http://s16.photobucket.com/albums/b2/Klausmerkel/Gi Joe Hiss II Customized/