First, the deadline to apply is July 15th, so I want to apologize for posting this so late, I just found this last night on the always delightful Peaceful Playgrounds blog.
Here is some information, stolen right from the blog post:
Mattel's funding priorities include: programs that directly and effectively impact children with demonstrated needs (physical, financial, emotional, and health- related); preferences to programs with demonstrated results; and organizations that use creative and innovative methods to address a locally defined need directly impacting children.
Preference will be given to organizations or programs that align with Mattel's philanthropic priorities:
Applicants must be 501(c)(3) tax- exempt public charity organizations (or have a fiscal sponsor with tax- exempt status) and must directly serve children in communities within the U.S. and will range from $5,000 to $25,000.