The artists of F.A.T. have fashioned Subpixel from nine razors, laser-cut acrylics and rubber bands: “In two quick swipes, it transforms a small patch of subway advertisement from a ‘one-way, unending flow of shit’ into an 8×8 grid of pixel stickers, ready for two-way interaction with the public.” Well, isn’t that nifty. Here’re the files for laser-cutting your base so you can MacGyver it into the perfect tool of ad modification and go nuts, if you’re so privy.