Wish they made a smaller version of this coffee can.

If the discussion is moving to the size range of something that can wrap around a 32 oz Nalgene bottle, there are numerous possibilities:

1) a stainless steel cup specifically sized to fit a Nalgene. Commonly available, it takes up little space, will heat a significant amount of water, and is quite durable. Drawback is that it is fairly heavy.

2) a Snow Peak 700 cup - titanium, which means it is pricy, but it is very light and extremely tough. I swallowed hard and bought one of these last year. It was worth it. Larger capacity - it is really all you need for a minimal cook kit, and it comes with a lid.

I would love to see an aluminum version of these cups. It would be light, cheap, and not quite so durable, but I have not found one.

A metal cup that will fit a shirt pocket PSK is a real toughy, as this thread demonstrates. The closest is the old Tacoma Mountain Rescue PSK which is contained in a tobacco can (Prince Albert). Just a little too big to really fit in the average shirt pocket, but it can produce a reasonable amount of liquid from snow.

I would hate to melt snow in an Altoids tin, but if that was all you had.......

I developed a companion kit to my PSK, it is the "Shelter" componant (Heatsheet Bivy/2-Person Heatsheet/matches/75' nylon twine) that is contained within a Hersey's Chocolate Syrup can (284 ml), this can is wrapped in cordage (nylon mason cord and parachute cord if I remember correctly) then this unit is inserted into a small stainless steel container with a see-thru lid. The final size is about 3 1/4" dia by 4 1/2' tall.

With this kit you have overhead shelter and the bivy bag, plus 2 containers to boil water in. The metal containers have 2 holes punched in the top and wire to make them into billy cans. I will post this kit someday when I get free time to take the pictures and do the write-up, maybe after Christmas.

I used the outer can on last springs ovenight trip seen here hanging over the fire between my boots in image # 8.

The ability to drink a hot liquid when it is cold allows you to take the heat energy of the fire and apply it directly to your inner body core. Helps me get through the night when I have minimal equipment.

Mike