Found in the Bournemouth Tesco, near the hospital.
Black and blue still at £24.97 or similar, just the pink one is down to half price. There was a proper shelf edge label and they had 5 or more.
Ebuyer list them at £20.68, but have no stock. They do have a nice picture though so if you need to know what it looks like paste this into your browser. http://www.ebuyer.com/product/173205