£6.37p Plus Free Delivery - Kingston 16GB Data Traveler Champagne SE9 USB 2.0 Flash Drive - Amazon UK (Bentham Ltd)
Price dropped again for them and I thought it prudent to post - hope it's of some help to you, as I'm off to buy two more as spares! :)
EDIT: According to a previous deal post it should come with a five year replacement warranty - the note reg. that can be found via the following link.