"Cover a light bulb with a doily and spray paint it. The light will shine the pattern onto the walls." I don't know how I feel about flammable spray paint on a hot lightbulb. Maybe spray paint them silver and use them as non-light decoration?
Do this with cut/short pieces of pallet, and cool pictures =] do a whole wall of thesee DIY repurposed wood frames with clips in the kitchen so the art is changeable with kids' school work & for seasonal decor