I filed down those strange looking canteens to make the two tin canteen styles.
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.