10 Easy, Cool-Looking Costumes You Can Make With Eyeliner

You'll need to dig out your thinnest liquid eyeliner pen for this intricate Halloween mask. To get a similar swirled design, start with a stencil. "The craft store sticker aisle is your best friend," Bartlett said. "When you remove a sticker the shell is still intact, and that's an instant stencil. I've also used Scotch tape to map out strong lines and sharp borders of a mask."

Use Stila Stay All Day Liquid Eyeliner ($20) to draw the design. If you make a mistake, apply a dab of moisturizer on a Q-tip to erase. It will cause less irritation than makeup remover when working around the sensitive eye area.