How to correctly copy a product

Help!

Here is my site: http://www.golfballmonster.com

I am on Woocommerce Version 2.0.20

With SOME items I am getting a phantom link on check out to what I think is the parent item from which I spawned the new item(s)

Here is a link to a screen capture that shows this:

http://www.golfballmonster.com/wp-content/uploads/2013/12/PhantomItems.jpg

Note that the link’s item is not being added to the total order…but it is causing havoc with my order fulfillment dept and with the customers as it LOOKS like they are getting more than they are ordering.

What am I doing wrong? I have “fixed” this on one item by simply deleting the product and adding it anew from scratch (not copying it from a previous “working” product). But I have dozens of these that were spawned from working products!

THANK YOU!!!

-Dean