My last event had a ton of young children and it was pretty time consuming to manually adjust the tilt of my camera to include them. I decided that I wanted to do something about it, but the commercial options seemed a bit expensive for what I needed. Last Sunday, I rummaged around and built a motorized tilt out of spare parts. I uses an old door hinge, some wood blocks, aluminum wire, an arduino and old RC servo. Total cost was $0! I estimate that cost of buying new parts would be about $25-$30. Replacing the arduino with a potentiometer and 555 timer would save the headache of programming the arduino and save about $10 as well.
My booth uses an arduino for reading switches, so I used that to control the servo as well. Right now the servo is controlled by the keyboard. I'm considering ways to control it through software or maybe a potentiometer or joystick mounted on the photo booth.
It's only about 70% complete and looks pretty rough, but I will be making it more robust in the next week or so as I get time.