How do I take two listings and bundle it into one for a customer?

[dhuzyk]

 I was contacted by a potential buyer. They said they were interested in two video games I have for sale, and asked if they purchased them together if I would waive the shipping. We've come to an agreed price, but the problem is these two items are still up under separate listings. How would I go about creating this bundle deal? Any help would be greatly appreciated!

[momcqueen]

You can't bundle them after the fact but you can add Best Offer to them. Ask the buyer to send you offers for the amounts you've agreed and then Accept them. Easy. Then Send Invoice with  adjusted postage savings, if applicable.