One of the several ways you can help Afghan children is by donating. Donations to IRC will go to Afghan children who are in need of Back-To-School supplies.
If you want to make things to donate yourself, you can try out:
The DIY Pencil Holder
The DIY Masu Box
The DIY Pencil Pouch
If you ever end up making a few to donate to IRC, you can give them to: