What are some good fundraising ideas?

The scout troop here puts flags up for fourth of July, Veterans Day, Memorial Day and one other day. They re-use the flags, put them up in the morning and take them down in the evening. It is a pretty good gig. You could sell hot chocolate this black friday, if you live in a cold place. Events make big money. If you, your parents and possibly some friends could coordinate a concert, or a big dinner or something like that you can make thousands of dollars all at once. Good luck.