For the kitten who isn't eating, try this (your friend may need to use an
eye dropper):

High Calcium Chicken Broth

Nourishing and easy to digest, it is excellent for the sick, nursing
mothers, the very old and the very young.

Serve the broth morning and evening and allow your cat to have as much as
they want at these mealtimes (but no other food), taking up the leftover
broth after a half-hour (refrigerate).  Sometimes a cat who is ill (or
malnourished, like
a stray) will have only a sip or two.  That's fine - just continue to
present the broth on schedule.  When the cat's body is ready to handle food
again the chicken broth is an ideal way to start.

   To Prepare High Calcium Chicken Broth:
       Chicken necks and backs (enough to fill a large pot 3/4 full)
       Green tops from a bunch of carrots
       1 tsp. fresh lemon juice

Put chicken necks, backs and carrot tops in a large pot and fill to
within 1 inch from the top with water.  Simmer 2-3 hours, adding
water as needed.  It should just cover the chicken
parts.  Pour off the broth and save.  Add more water, just enough to
barely cover the chicken.  Add lemon juice.  (The calcium in the bones will
dissolve in the acid from the lemon juice.) Simmer another half hour.  The
broth will look whiteish. Drain off liquid and add to the reserved first
liquid.  Store tightly covered in the refrigerator.

Jill