For his wedding, designer Matt Frank built this photo booth that looks like a giant Lomo camera. It comprises a Mac running Photo Booth, a monitor for reviewing photos, halogen lighting, and a hacked Easy Button that acts as a shutter release. Frank writes,
I decided to build my own photo booth after trying to rent one from local photography studios. The going rate for a rented photo booth is around $600 in addition to the hourly rate of the attendent to watch over the equipment. As this was not in my wedding budget, and I did not want to deal with an additional vendor, I decided to build my own for under $200. [#]
The total cost for the DIY photobooth came out to about $150. Frank has also written up a step-by-step tutorial on how it was built.