Where can you buy the backing covers for the Palm Pixi Plus in different colours

[Alice]

and designs for good prices? I'm wanting to know where you can purchase (online) the different backing covers in different colours and designs for the Palm Pixi Plus Phone, for a reasonable price and not on the palm website oh and in the uk. thankyouuu
also i am in the scotland (united kingdom) so please dont give me american websites that dont ship to the uk