When people click on a link you make a small royalty from the click outs. If you add a selling module like ebay or amazon and show items for people to buy when they click through and make a purchase you also get a royalty.
What a great way to let your imagination go free writing on any topic you choose. It's free to join so what are you waiting for go sign up... you'll love it. I have to say once you do a few of these pages it becomes addicting.
Here are some inspiring items from Designs by Shell