Sheets, Toys, Socks & Pet Food:

Mary Marzano found a way to reuse gently-used sheets from hotels that would otherwise be thrown away by donating them to homeless shelters. Since she began, Mary has provided bedding for 8000 beds. Audience members and staff each contributed a new sheets to Mary's organization for a total of 340 sets.

10 year-old Ashlee Smith saw a need to help children who have lost everything due to fire. With the help of her firefighter father, Ashlee has given out 50,000 toys in the last 2 years.
Hannah Turner first gave her pink socks to a homeless man at the age of 3 and decided with her mother to donate 100 additional pairs to a shelter. Since then, Hannah's Socks has given 100,000 pairs of socks to those in need.

12 year-old Mimi Ausland started http://freekibble.com/ to donate dry pet food to animal shelters in need. Since starting the site, the organization has helped to feed 1 million homeless animals.

BTW ~ Mimi also has a page for cats: http://www.freekibblekat.com/