That's me, brazenly going where no knitter has gone before. . .
DIY: Tear the duct tape lengthwise so you have a strip about a quarter of the width of the roll, and fold it in on itself. Keep pulling this narrow strip off of the roll in one continuous piece and folding it on itself to create your "yarn". Try to cover all the sticky side when you fold it so it will stick to your needles as little as possible. Use large (size 15 or up) plastic or metal needles, and go to town. I did have to clean off my needles midway through the project - some of the adhesive will get on your needles regardless.