Keep in mind that Cody's list isn't designed to be the "ultimate" in gear but rather an effective and *inexpensive* solution.

Also... filling a condom is easy. It just takes a tiny amount of creativity. If I was carrying Cody's kit I would plug the hole in the bottom of the mora sheath with my thumb and use the sheath as a "cup" to scoop water into the condom. If my condom is in an Altoids tin then the tin is my "scoop". It's amazingly easy to fill a condom. How about a shoe or a hat? Even a properly folded piece of paper, bark, a leaf, a piece of cloth, or any other number of things can be used. You just have to use your #1 survival tool. The one attached to the end of your neck.
_________________________
Learn to improvise everything.