Have a look on ebay; there is a set that claims to be made from the QE2's propellors that keeps coming up for sale.
The price is usually about £1000 but I have never seen a set sold.
A word of warning, buying such things over ebay without any way of confirming authenticity, quality or even existence is a risky business. There is no gaurantee that these clubs are what they say they are and £1000 is a lot of money to give away.
Such items should only ever be bought from recognised dealer who you know.