Startup Idea: Coupon Search Enhancement Software

Startup idea to develop a software that enhances the functions of existing coupon code finder applications. Instead of finding codes for the shopping site in general, this software would specifically retrieve coupon codes for the item the user is interested in buying even if there are no current site-specific codes for that item.

I have recently signed up to use a program called Honey that finds coupon codes for the site that I am shopping on. It would be great to have software to find coupon codes for the item you are shopping for if the site you are shopping on does not currently have a coupon code for that item, but for other items.