The bridged layers are specially made so that they won't fall apart or lose 'islands' when you cut them.
Cut out and paint your four-layer stencil of B-24. Decide whether you will use the natural surface color as one of your layers. For example, if your surface color is close to the color snow , then you may choose to omit the first layer since the surface has this color already. Download the free cut files to cut this stencil of B-24 yourself. Or upload your own image to turn it into a stencil.