They will use the light as a media to surprise someone after entering certain room or place. They would turn it off and suddenly turn it back on, it is very easy and efficient. However, if you want to make a more memorable surprise party you should play more on the lamp decorating. The lamp decoration that can be used in this occasion is one that is shaped the name of the one who has the birthday. Another way is by decorating the chain lamp to an object like a small tree or hang it on the ceiling. Interior Design.