Capture the Villain
During the Party:
Select a playing area, and set boundaries (i.e. certain landmarks, such as trees, or a roped-off perimeter). The more guests you have, the bigger the playing area should be.
Choose one guest to be the 'villain". Give all the other guests, who will be the 'superheroes", a can of silly string. Have the villain stand on one side of the playing area and the superheroes stand on the other side. When you say, 'Go!", the superheroes must try to 'catch" the villain with their 'web". Whoever captures the villain must be the villain in the next round of play.