I know a lot of people diagree on this but to me the best deal is not always the cheapest.
I look for how easy a camera is to get into and how good are the pictures it takes. Next would be battery life and price of the camera. Put these together and yes I think the OWL wins. Others may disagree.
I agree that the Owl is probably the best camera for the job, but it's not the only camera that works. There are a Polaroid model 35mm and a Vivitar model that have date functions that have been successfully used. If you're not interested in the date/time function then there are probably countless point ant shoot cameras that will work. Do a search on the board for Polaroid and Vivitar to find the model numbers.