A diaper g’mach is relativley easy to set up.
needs:
a few large plastic storage bins with lids
a package of each size running from newborn on up
same with pull-ups
several packages of wipes
diapers or pullups, so you come and borrow to tide you over.
money, we are able to help those with limited incomes receive a package
without an obligation to return. Additionally, as just happened moments ago,
someone will call and ask when they can drop-off sizes that they no longer
need.
the following is the link to my diaper G’Mach:
http://www.theyeshivaworld.com/coffeeroom/topic/diaper-gmach-be-part-of-the-mitzvah