I just finished building a pinhole camera the other day, and I used my dog as a model for my first roll. I made the exposures during afternoon sleepy-time in hopes that she might stay reasonably still for the long exposures. I don't know what I was thinking...
We made it about half way through a one minute exposure when she decided to change her pose, creating a nice ghost. Or maybe she just looks like a two-headed dog.
The camera is built around a Horseman 6x7 film back I picked up on eBay, the focal length of the camera is 48mm, and the pinhole aperture is f185. One minute exposure on TMax 400.