The Psyclown is an machine created and used by Zombozo and one of the many objects in the Ben 10 series.
Zombozo staged circus shows at his namesake "Traveling Circus of Laughs" to bring people in and then uses the Psyclown to drain the positive life energy from them for him to "feed", leaving them depleted and even aged. He planned to go to the big cities to eat off millions of people, but was stopped by Ben. When the machine was destroyed, all the happiness was returned to the people Zombozo stole it from.
Powers and Abilities
THe Pysclown gives Zombozo the ability to drain happiness from people when they laugh. The energy feeds him and makes him strong. The machine has line connects to Zombozo, giving him the ability to fly. It can even age the victims.