But if you have a hard time spending $25 on a brow product — or would just rather put that money toward margaritas at happy hour — then we have some good news. Marc Jacobs is offering a major discount on the Brow Wow pencil right now, so you can get the stuff for half the price. All you have to do is head to the brand's website , add a Brow Wow pencil (or five) to cart, and then enter the code "BROWWOW!" to get 50% off. Luckily, the offer doesn't end until August 31, so you have plenty of time to finish that marg.