A friend of mine received a Guinness harmonica through the post. He didn't want it so I've auctioned it for him. I've done it at work, so there's no picture and a very hastily cobbled together description... if you're mad enough to want this one-off piece of rock and roll tat, here it is...
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...item=3709718144
It even has a couple of bids. They seem to be going for about £3. I would have asked him if I could keep it, only I already own a non-Guinness metal one.