I found this
stainless steel canteen cup tonight to go with a Nalgene. I ordered one can't wait to see if they really have it. Made by MSR, 22oz and just $6.95. If it doesn't weigh a ton, it's a good deal for hiking and survival.
On the PSK kit side, just fill the Nalgene with your gear and drop it in the cup. They are making all kinds of miltary/molle style holsters for the 32oz/1 liter Nalgenes.
The MSR cup arrived today and it does have the MSR logo. For what I can tell, it's old stock -- I couldn't find it in the current catalog.
It is a little heavy-- 5.6oz, but then it is $7-- not a $50 titanium pot. It does fit the Nalgene 32oz bottle and in fact, it's a little loose. That's a good thing in my book as the other polycarbonate bottles tend to be just a hair larger and won't fit the Oilcamp steel cup. This one is a little taller too, so the total volume is 22oz. It has more of a bead blast finish which makes it more stable on an Esbit folding stove-- the shiny Olicamp is slippery. I like the handles a lot more. If you don't mind a couple ounces more than a titanium pot, this one is a great buy. It will last a lifetime too. Add a little tin foil for a lid and you can go anywhere with this pot.
There's a couple ways to go about using a small pot for a PSK. Using a Nalgene works great, as it can be used for water and it will keep all the contents dry and safe in one place. You can get a lot of stuff in a 32oz/1 liter wide-mouth bottle. Another way is to put your stuff in a small stuff sack and put that in the pot. A waterproof stuff sack can be used for a water container in a pinch.
Hauling this setup could be done with a shoulder strap holster, a belt mounted holster, inside your pack or one of the water-bottle sized outer pockets if you have one. There are a lot of MOLLE water bottle holsters being offered now in several colors.
I like these bottle-based kits for family as I can hand them one and know they have all the essentials with them. A little instruction on the first hike with one is a good thing. You can talk about whistles and signalling, staying put when lost, treating water before drinking it, using space blankets and hypothermia, managing food, etc.