I have found this website, which is quite good, but i was wonderng wether anyone has got some propper experiance making one. Also i was wondering whether a pumpkin would work very will becuase it it round instrad of tall.
http://corditecountryshownotes.wordpress.com/2009/10/22/make-a-canteen-from-dried-gourds/
http://corditecountryshownotes.wordpress.com/2009/10/22/make-a-canteen-from-dried-gourds/