Fabulously Fun Carnival Ideas by SignUp. This guide includes helpful tips and creative suggestions for organizing a school carnival, church carnival, or fun festival for any community group. Filled with suggestions from carnival committee veterans for carnival games, activities, booths, food, concessions and fundraisers. Use SignUp's FREE volunteer scheduling software to coordinate carnival volunteers. Simple and easy online sign up sheets - participants choose a shift with a click and SignUp sends automated reminders to help people keep their commitments.