I enjoyed Rooster and few others kicking around the idea of "letting the customers choose the price" and found this which relates a little...

I found it from combing through old emails I've neglected to open until now. Joe Vitale's "News You Can Use" Bulletin:

http://www.yourparrotwilltalk.com

Go to the site, once you close the window, take a look at the popup. What do you think?

Success,

Erik