Find out from the Interfaith Hospitality Network which local congregations are hosting families in the near future, to donate to them. I know that Our Lady of Sorrows in partnership with St. Joseph will be hosting in the next couple of weeks, for example.
Bridges collects and distributes them.
http://bridgesoutreachnj.org/toiletry-kits-cold-weather-packs/
Promote your business here - Businesses get highlighted throughout the site and you can add a deal.
Would love to find some organization that can use them.