if you google gun guitar you will find many
http://www.gizmodo.com/gadgets/gadgets/gizmodo-in-japan-gun-guitar-026341.php
http://blogs.sun.com/roller/page/exoteric?entry=guitar_gun
http://musicthing.blogspot.com/2004/11/best-gun-guitar-yet.html
http://musicthing.blogspot.com/2004/09/ten-guitars-shaped-like-guns.html
http://members.cox.net/bzolla/Gun.html

is this the ultimate way to turn swords into plow shares?

i guess that would be if they were made into shovels