I got this idea from
http://www.thespoke.net/MyBlog/ddt/MyBlog.aspx. A very good blog, if a little quiet of late.
Not so much a puzzle, as an exercise in salesmanship this week: I take out of my pocket two pound coins and put them on the table. They are identical in every respect. Your company makes the one on the left. Explain to me why that is the better pound coin. Best answer wins the certificate. My decision is final. Hey, I don't make the rules...or, perhaps I do in this case.