Removable wall decals are an extra-special way to decorate a party. A themed wall decal really goes the extra mile. I like these by Blik, which feature old school video game and arcade designs like Super Mario Bros. and Donkey Kong. Great for parties for young boys (or the young at heart,) you can put them in your main room during the party, then re-locate them to a child's room when the party is over. Blik also has Asteroids, Centipede, Space Invaders and more.