Sick stray kitten, shelters are full, i don't want him to die!?

well, first and foremost, try to clean him up a bit- get the mucus stuff out of his eyes. if you can get to a store, preferably a pet store, try to find this stuff called 'nutri-cal' or something similar to that. it's in a tube usually- it's basically a gel that has TONS of the vital vitamins and nutrients that small, young, malnourished kittens need- and it works especially well for the ones that won't eat. put some of the gel on your finger and have him lick it off, or just put it in his mouth- he'll slurp it down, and keep giving him formula, but you probably don't want to give him wet food unless it's mixed with dry food. i've found that wet food can give kittens reeaaalllllyyyy bad diarrhea, and the last thing you want is for him to become dehydrated. next, if you can't get him into a shelter, places like petsmart, petco, or almost any other pet store will usually take abandoned animals and care for them until they are ready to be adopted. keep a close eye on him and try to keep him warm. hope this helped =/