I need a substitute for eyeliner?!?

I have MAC eyeliner, the one where you can sharpen it yourself. But, the problem is, i lost my sharpener. I know you can use scissors but it take too long. So whats a good substitute for eyeliner that you put on the bottom of your eye? I heard you can use a brush and use dark eyeshadow with a little water, but i dont have a brush!!