The fourth idea is to use kid’s cowboy theme. Use your imagination as much as possible about a cowboy world favored by boys. Symbols that are commonly used are border rope, tin stars, chap wall hangings, horses, and bandana valances. And the last idea you can use the boy’s room decorations is a theme related to transportation vehicles. On this theme you could use those things related to trains, auto mobiles, and planes. Use bright primary color on the wallpaper, bedding, and fabrics. Kids Room.