India ink is fun stuff to play with. I spilled a little onto some bristol board a few days ago, and started spreading it out so that it wouldn't drip. It began to look interesting, so of course, I spilled a little more, and started scribbling in different directions. Before too long a new vector pack was born from this little mishap. Sometimes the best stuff is found by accident . I love having stuff like this on hand. They're great for adding some background texture, and interest to your vector artwork.