If you've already bought the bookend, surely your home is also crying out for Susan Bradley's Routemaster letter rack?
As with the bookend, she's taken the instantly recognisable shape of London's most loved bus and applied it to a usually quite dull household object. The rack can be mounted or is usable freestanding and the cheery outline of the Routemaster is bound to make storing your correspondence that bit more fun: no mean feat, especially if bills are involved.
The letter rack costs £20.
Buy it from Magma