With Endless Aisle, you take an order in your shop using the web checkout and your customer pays for the products on site, including shipping and packaging costs. As soon as you have the product in stock, you can send it directly to the customer's home. This functionality is suitable if you want to sell products in your shop even though you do not currently have them in stock.
Producer
PepperShop
Link
http://www.phpeppershop.com/