Cody Lundin is quoted as saying "on the eighth day God created Duck tape" and you know what, he just might have a point..I've seen it used as a knife handle, arrow fletchings, hatchet cover, string, repairs and even a boat!!! We always carry a small roll of it when we are out, and if the worst comes to the worst you can even make a cup out of it
pick a suitable mould to wrap the tape around, I've used everything from a can to my fist and even the end of a small tree branch
might not look like much but it works as an impromptu small folding Kuksa!
A word of warning, as you can see it works very well with cold fluids, but leaks quickly if you use hot, make a bigger one for a basket or container for berries etc if you need to!