It's not every day that Krink reveals a new product. Check out their new K-90 paint marker, which just launched in black and white versions. While most of Krink's markers use a mop or felt nib, these use a roller ball, so you should be able to get some relatively detailed work done with these, whether you're writing on a wall, scribbling on paper, or customizing a platform toy. They're available here for $12 each.