This idea works well in a worship service stressing hunger and starvation in the world. According to statistics (need to be updated) someone dies of starvation every eight seconds. During the worship service, have someone beat a drum every eight seconds to symbolize another death taking place. The drum interrupting the normal course of the service dramatically illustrates how often we try to ignore the problem of hunger in the world but it just won't go away unless we do something about it. *** My twist: Show slides of hungry children, etc. and in silence, have the drum beat while the kids watch the slides.