For those who might believe that advocating tobacco use on a survival forum is irony, I offer a selection of pipe-smoking survival features:

-mosquito smudge deterrence
-provides a smoke-marker for aerial searches
-filters out air-borne pathogens and toxins
-provides fire-starting practice
-provides trade goods for barter
-may be used as an improvised water filter straw by immersing the bowl in water source and sucking water through the stem filter

...I am certain that I have missed some...