I have purchased stencils of this type from Bromley Crafts. I tend to buy these as they are all strong and flexible and can be used several times over. An added bonus is the very large size available that can cover across half the back of the dolls house I am working on.

This is one of my favourite stencils. The rustic stone finish is perfect for my little cottage.

Very nice stone effect. A bigger sheet would have been better.

I've used all of the stone stencils now and this new design is my favourite ..perfect for my current project anyway. This system is by far the most realistic way to decorate a dolls house imo.