Dave Kirkwood is currently running a project called 3 hundred and 65. Everyday a new contributor writes a tweet-length chapter (140 characters) for a story that will grow and expand over the year. Each contribution is illustrated.
3 hundred and 65 is raising money for the Teenage Cancer Trust through donations and an auction of the illustrations and notebooks. (I'll be donating on pay day). You can make a monetary donation via the 3 hundred and 65 website. There are even a few dates left if you want to contribute to the story.
Back in January, I picked the 20th February (my birthday). If you click through then you can read my contribution to 3 hundred and 65 and see the fabulous drawing. Here's the link > 20th February.
I'm really looking forward to see how the story develops.