Clubpenguin cheats: disappearing sofa

If you're a member, then go home and design your igloo. When your designing, take the box dimension and any sofa, but a big one. Take the box dimension and put it on the floor. Then put the sofa ontop of it. Make sure no one can see the box dimension. Then when penguins sit on the sofa, they'll disappear.
          If you want to find me on clubpenguin, my name is pinkyrose101