Cats are always looking for something to do. That’s why we developed the Steampunk Cat Transit System (CTS) for a private residence in San Francisco . The homeowners spend a lot of time in their home office, which means their cat is always in there too, and they wanted to offer some entertainment. It allows the feline a means of traversing the room without ever stepping foot on the ground — or computer keyboard — and it looks cool because, well, we think steampunky things look cool. With the right tools and materials, you can make one for your kitty, too. Here’s how.