There's no doubt that kids will be happy if you give them a shiny new football. They'll also be happy if you give them a secondhand t-shirt or new pair of shoes. That makes for lots of donor 'feel good' and nice photos on your Facebook page, but that doesn't make it good aid.
If the priority here is to do something helpful for the developing world, and that's why they're willing to put all the required effort and money into this project, then why not start by asking the developing world what their pressing problems are? Ask a few developing country governments and see how many of them report a lack of good footballs as a pressing problem.
When people don't ask questions like that it's usually an indication that the aid is more about the donor than the recipient. This project sounds a lot like TOMS Shoes Buy One Give One which has been frequently criticized for being a donor oriented initiative with little long term benefit [1]. It might sound completely harmless to hand out free shoes to kids, but it ends up undermining local producers and sellers, and perpetuates a 'handout' aid culture.
[1] http://goodintents.org/in-kind-donations/toms-shoes http://www.nextbillion.net/blogpost.aspx?blogid=2345