Popcorn Birthday Cake Can You Help Me Create A Carnival Themed Birthday Cake?

Can you help me create a carnival themed birthday cake? - popcorn birthday cake

I'm trying to create a birthday cake for my daughter, 3. Let's Go All Out, and make an evening of carnival theme birthday with a tent, a zoo, games, etc. I'm not really interested in buying a cake, I prefer to do it myself. The only problem I have is that I do not really want to find good ideas. I saw a for a box of popcorn, but it was "negligent". Any help would be very grateful.