like this photo board idea. Could have a base board with velcro or similar to attach different fabric backgrounds. Some small metal hooks in the sides to attach photo strands and mini buntings.
Katy N's Birthday / Country Fair - Photo Gallery at Catch My Party
Kristin K's Birthday / Birthday, County Fair Theme - Photo Gallery at Catch My Party
county fair party foods like fruit and soft pretzels
giant prize ribbons - Kathleen Ballos for Oh Happy Day