Let me suggest you tweet this:
... door decals, that is. The beauty about European houses is that antique wooden doors are all included and genuine.
The same techniques we use to cover busses and trucks with ads, pictures and all-over graphics, come back -- en miniature -- in delicate shapes, cut in elegant, glossy foil.
As promised --
These decals stick to most wallpapers and laquered wood, yet the foil is fully removable without leaving any residue.