Fundraising Suggestion/Ideas?

Some Realtors from our local RE/MAX offices are trying to plan a drive or fundraiser to assist some of our area organizations like the Children Crisis Center, for example. A few of us sat down with several organizations, toured their facilities and discussed their necessities. We wanted to stay away from the typical can and toy drive. After much discussion, we determined that they need the things we didn't really consider like socks, underwear, toiletries, bedding and of course monetary donations etc.

What I would like to ask is for recommendations/suggestions on how to get the word out for public involvement and make this a success. Perhaps you know of a company that we can buy bulk items from? If anyone has participated in such an event your suggestions would be greatly appreciated.