Pencil case + Public space = Your decision
The idea is to distribute pencil cases around public space and to get the public engaged. The purpose of the pencil case is for the public to pick it up and fill it with varies stationaries: as much as they want. If the pencil case is not full the person can have the option to pass it on to their friends, relative etc or just placed it back for the next person to pick it up. When the case is full the last person will need to send it back to Peace one Day office for them to distribute it to the third world countries.
The case and stationaries will probably be stolen or taken away, but the overall result is for the people who have contributed to have a peace within their mind and their soul that their contribution had help a person.