UK-based artist Matthew Nicholson is a man of many talents: designer, photographer, professional free runner and papercraft engineer—and in the latter of which, he generously posts free downloadable DIY kits for your folding pleasure.
The only template currently available is the PDF for his "Fauxlex" Rolex watch (above), but scroll further down to view more of Nicholson's templates-to-come—the pinhole security camera is sweet! Download the Fauxlex template here; watch the video demonstration below for help with assembling.
"A functional paper replica designed to give its owner a sense of security when it's loaded with 35mm film." Check Nicholson's site for updates.