I filed down those strange looking canteens to make the two tin canteen styles.
Frontier Militiaman in the War of 1812: Southwestern Frontier (Warrior)
Note the straps on the two canteen examples.
Since the figures have more "civilized" clothing and no fringed hunting shirts I went with 1812 era canteens that I am familiar with.
Note also that several heads have the non fashionable mustaches from the era. They were too tiny for me to try to remove so I just painted over them.
Two of the heads included have African features. I painted them as a white militia unit. These heads could come in handy for a Battle of New Orleans unit of freemen.