I have 9 left over from a 25 pack:
like these. They also still have the instruction leaflet with them in a polythene bag.
I bought them in February 2011, and their expiry date is October 2012. They're a lucky pack for me as I got pregnant in April 2011 and had my baby, so don't need them any time soon!
If anyone would like these, please message me your address and I'll send them free of charge.