At surrealism.co.uk we are experimenting with a communal means of generating ART. Depending on how much interest there is will dictate how the end results are displayed/published.

Follow the instructions here.
All you need is a basic means of recording sound digitally.

Add something to a blank digital canvas (download it here), sign it,
then send it on to anyone you know to do the same.

Our Colloquy - Collective Poem has been gathering momentum for a while now.
To contribute to this collective text there's more info here.