No, actually, that is a green nylon poncho.  I still have it.  It wasn't too bad, just too full for in a canoe, so she had to watch the wind.   ;)

Space Food Sticks aren't available everywhere, but I heard of a place online that has them still.  You have to buy a big box and we have lots of them left still from my unwise purchase this past summer.

And yes, Tang is available.  We take Tang on every single trip.  Have never taken (nor heard of) "Shake a pudding", so I can't speak to that.   ;D