Well, I did wonder if this was the Christmas present to send to our router suppliers. For some reason they include a not-quite-cat5 cable in the box that has only 2 pairs, so will only work on 10/100Mb/s Ethernet.
These cables are such a pain in the arse that we remove them and replace them with a proper cat5 patch lead before sending the router out. Yes, the router will not do more than 100Mb/s, but the cables end up on other kit if you are not careful and cause much cursing and annoyance which we would not want to impose on any of our customers.
But what to do with a box of useless cables? One plan was to send to the router suppliers. That may be seen as a tad rude. In actual fact it is a "guess the number of cables" competition in the office, before they go for recycling. I think only staff can join in though, sorry :-)