Collaborative Payment Prototype

You know when your team at work wants to buy a coworker a gift as a group? Someone always get stuck paying for the gift and running around trying to collect money from the other contributors. This project will be to develop a drop in software package that will allow websites to accept and process collaborative payments. This application will not actually process the payments, it will just allow existing gift card or payment processing web applications an interface to accept collaborative payments. The interface will also keep track of the funding for the gift and submit the order to the processing site when applicable. I'm not looking for a full time project person. I'm looking for a one time freelancer to develop the prototype web application. Please PM me with questions on this project to provide an accurate bid.