Save The Children is running a Make A Cap campaign. Now though it is called Knit One Save One, they also accept crocheted caps. I will quote here from their own site and you can take a look for yourself if you wish to participate.
By keeping a baby warm, your cap can save a life. Just download our Action Kit and you’ll get a variety of easy patterns for knitters or crocheters, as well as instructions for writing a letter to the new President.