Question: What would be the best solution to do this?

Question: What would be the best solution to do this?

Basically, a customer views the page and is presented with a starting base price, they can then drag and drop extras onto the base product and it increases the price, I have thought of many ways to do this such as multiple html pages when a user selects a new product but that way is quite extensive and unnecessary when I could do it using jQuery.

So my question is, is there a plugin that can provide this type of functionality? Or could someone quickly write me up some psuedo code? Thanks a lot for reading :)