Just joined this money making site yesterday so not sure what the results will be but didn't cost anything to join so why not try it out.
These are a few of the photos I've uploaded so far:
RedBubble has been extremely simple to use. Upload your quality photographs, add a title, brief description, keywords, set your mark-up % (what you want to profit), select what options you want to give your customers (cards, prints, framed, etc) and publish your art work.
Now you are expected to promote your own 'store' but RedBubble provides some great tools such as banners, slideshows, and other options. While it does seem the base price is a bit high RedBubble does handle all orders, printing, and shipping for you so that's a big plus.
Payment is via PayPal or check at $20.00 earnings for the month. Will keep you posted on any further news but at this point I recommend you check it out.