The Stencil Library: Stencils
I've thought of stencils as being mainly awful pastel flower borders in people's bathrooms. This company changed my mind. Stencils can range from large individual designs that are a piece of art, to patterns that can be extended to be wallpaper, to those dreaded borders. You can put intricate paisleys on your wall, or a lovely allium, or a flock of sparrows crossing the wall and ceiling. You can put a campy astronaut on your kid's wall if he or she dreams of space. You can put a border of barbed wire on your teen's wall if they are at a prickly age. There seems to be something for everyone here. The company is in the UK but ships worldwide.