Wet n' Wild liquid e/l (if you wanna go dirt cheap) or if you want to spend like $15 (+$18 if you don't have a 266 brush or any other equivalent lining brush), I highly suggest looking into MAC fluidlines. The formula is a cream/gel eyeliner but gives you the look of a liquid liner. It DOESN'T BUDGE. The only bad thing is that it's really hard to remove sometimes.