Looking for a "buy 2 get free bonus" module OC 1.5.6.1

Hello,

I am looking for a OC 1.5.6.1 module that will do the following: When someone buy 2 products (the product should let me add a list with products included in this promotion), the user should get either a popup or checout options to choose one free item from let's say a total of 5. Ideally, this free item that he choose is not a product (so it doesn't have a product page with price and all), but an attribute/option with a name and image (if the image can be zoomed it would be awesome).

Do you guys know any module that can do this?

Thanks in advance for your help.
Laurentiu

Well, this could possibly be of help on such.
Ernie
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Unlimited Upsell - Buy X Get Y
https://www.opencart.com/index.php?rout ... n_id=19694
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