Character, costume and location

I want to use a range of characters to show a broad range of opinions. These characters will not be on screen for more than 7 seconds however I want them to flash up and say the phrase 'I believe'. I want to use both adults and my peers at school. However using a range of background so it doesn't look they've all been done in the classroom. As I want to use this range of characters there will not be a set uniform, or costume. I wish to use landscapes location, and religious scene such as church's and mosques. I want a shot in the corridor of people walking past, as well as one of The Feather's.