Frosted window treatments create an opaque finish on the glass that will allow light to pass through, but will also provide the room with some privacy. Frosted windows can be created by sandblasting and chemical etching or they can be temporarily frosted in other ways.
Try a homemade recipe to create temporary frosted designs on your windows. Mix 4 tsp. of Epsom salts with 1 cup of beer. Allow it to foam up and sit for 35 minutes. Place stencils on your windows, or use painters tape to create stripes or geometric designs. Dab the beer and Epsom salts mixture onto the stencil. When the mixture dries it will leave a crystal-like finish behind on your window panes.
Create your own frosted glass designs with etching creams, which will create a permanent opaque frosted finish on the surface. Consider creating rows of tiny stripes by laying down evenly spaced, thin rows of painter's tape on the glass before applying the etching cream. When the cream dries, remove the tape to reveal the clear areas and the design. Or consider sticking on tiny leaf stickers before applying the etching cream, which will leave behind pretty, see-through leaf shapes.
Use window films to create decorative etched-glass patterns on your windows. These create the look of frosted glass without the mess of chemicals. Choose geometric designs, pebble shapes or diamond patterns. Or, for more privacy, try solid frost films without designs or white-on-white floral designs. Allow a narrow clear glass border, or fill the window entirely.
Purchase frosted glass spray to create an etched glass look. These sprays are available at craft stores and home improvement stores such as Home Depot. If you want to add a design, purchase stencils and apply them to the glass before spraying. Or consider a pearl finish with pearl spray paint for glass. You can also use a combination of pearl and flat frosted sprays. Try a frosted glass spray for the background, and a delicate pearl leaf on top of it for the foreground, created with a stencil and pearl spray paint. Another idea is to create a geometric design on your windows with painter's tape. Apply lines of tape to make a geometric, arts-and crafts-style border pattern, and spray over the design with frosted glass spray. When the frost dries, remove the tape to reveal the design.