In reply to Gareth H:
I saw Zimbabwe dollars for sale in a shop today in Cecil Court, number 20 I think?
It's a kind of collectors shop in WC2 London just off Charing Cross rd.
They have the 10 million dollar, the 25 million, the 50 million and the 100 million dollar bills in the shop window.
Prices are about £9.50 for the larger notes.