I offer custom designed signs and the prices will change depending on the customers demands but Id like to offer the option to select it and then discuss with me via email/whatever on a agreed price. Not sure how you could do this if its possible at all?
I would hate to list a low price and get screwed if they make a purchase or put it too high and scare away customers lol.
And also is there any option to add in a text field for us to add in a question as the customer is checking out. For example you want a sign with your name on it, is it possible so there is a mandatory text box that shows up that forces the customer to fill it out. I know Etsy can do it and its great for any thing thats custom and personalized.