Oswald Room Decorating Kit Appliques and Paint Stamps - by Nick, Jr. The largest of the sticker decals measures approx. 8" tall. The decals have a clear background so all that shows on your walls or craft projects are the characters. The paint stamps are easy to use: wet stamp to expand image and let dry...apply paint to stamp and press firmly to your wall or other surface. That"s it! This room decorating kit includes 13 sticker decals and 2 paint stamps to transform your room into the magical world of Oswald.