Harrruuummmphhhh - whipppersnippers indeed.

During WWII the US Army issued quite a number of plastic canteens (about 1 qt size). Since they were in all the "Army Surplus" stores, quite a lot of Scouts/campers had them from about 1948 on. Neither the plastic nor the "better" aluminum ones were too noisy, since they were all carried in an ill-fitted canvas belt-bag, but the shape was a little inconvenient when you had to carry much other stuff.

Anything you put in one of those yellow plastic canteens came out tasting like you'd carried it around in an old boot - with sweat socks still in place therein.

The style was still in use during the Korean action, although some other (better?) ones had started being issued. Most (surviving) vets learned that any equipment issued needs some judicious taping and tying to get it quiet - it just got a little easier with some of the new-fangled stuff.

John