So since a few of us have been doing some graphix stuff i had a little idea.
Ok so we start off with a usual banner size - so 350x140
First person adds something to it background render etc but only 1 item, uploads it with psd.
Next person gets to add one thing to it and or change something from the previous psd, then uploads with psd an so on an so forth.
Anyone interested in having a go?