More to explore:
Birthday backdrop for pictures
Paper chain backdrop for a photo booth
Photo booth backdrop using plastic tablecloths for a birthday party
How to Make a Mini Photo Studio In Your Home For Under $20 | In My Own Style
DIY floor and backdrop...for cheap!
DIY Photo Booth Backdrop Frame : drape cloth over and set up lights... have props (giant pretzel, german alpine hats, suspenders, etc, sign "happy birthday" or german phrases)
How to Make a PVC Pipe Backdrop!
Taping the strings at various heights to create a wall of balloons... Instant backdrop and beautiful!