There are lot's of actions taken to raise money for Japan,
I'm offering my drawing and painting skills to raise money for Japan on the livejournal community help_japan.
If you bid on things and eventually win the auction you have to donate that money to an organisation and you get what you won in that auction.
If you go to this comment you can bid on 4 postcards made by me with any theme, with any material of your choice.
Perhaps you aren't interested in drawings, there are also other things like
words part 1 & part 2
interesting things part 1 & part 2
or you can always offer things yourself.
Thanks for your support!