The Document Freedom Day (DFD) is the global day for document liberation. It will be a day of grassroots effort to educate the public about the importance of Free Document Formats and Open Standards in general.They are holding an event that seek to have local teams from all over the world organise events on the last Wednesday in March. The first 100 teams that sign up will get "DFD Starter Pack" containing a flag, t-shirt, leaflets and stickers.
Few years ago, i got a t-shirt from RedHat Magazine which has an ODF logo in front and back, but i guess this one is as cool as the previous one. It will have an ODF logo on it (as usual) and some text on it. You can see the DFD Starter Pack on their page
Any Indonesian volunteers?