This is a little unconventional but I buy a tube of mascara just to use on my eyebrows. It keeps them in place and darkens them up a bit. Plus, I think it looks more natural than a pencil since you are just coating your own eyebrows
PicMonkey's new Eyeliner effect will be your new BFF. Designed to make your eyes pop without the worry of poking yourself in the eye! Tip: If you don't have a steady hand, switch to the Eraser tool to clean up your lines.