Draw a picture of a rose on newspaper or poster board.
Use a craft knife to cut out the picture.
Put a drop cloth on a flat surface. For example, you can use the floor or table.
Take down the blinds on which you want to put the stencil.
Lay the blinds on the drop cloth.
Put small pieces of masking tape on the back side of the newspaper so it can stick to the stencil and blind, preventing shifting or moving.
Hold the spray paint can at least 12 inches away, and spray the stencil in a sweeping motion.
Let dry for approximately 10 minutes.
Remove the stencil.