It's not surprising to see postage stamps and special cancels and souvenir covers are issued.
1. India Issues a Special Definitive Postage Stamp. Rs 25.00 Denomination Stamp & Sheet of 70 Stamps
2. South India Philatelic Association (SIPA) has also issued a special Hologram Cover today on this occasion. It perhaps is the first Gandhi Hologram of it's kind.
3. United Nations issued a souvenir stamp of US$ 1.00 and souvenir card. Click here to order one from the United Nations Website for yourself. The description is below.
A New York card on the theme “International Day of Non-Violence” will be issued on 2 October 2009. The card depicts a picture of Mahatma Gandhi and the new US$ 1.00 definitive stamp. The card carries a statement by BAN Ki-moon, the Secretary-General of the United Nations, and by S. M. Krishna, Minister External Affairs of India.