New $1/2 Sharpie Highlighter Coupon May 20, 2010 This post may contain a link to an affiliate. See my disclosure policy for more information. Here’s another Facebook coupon! Go to the Sharpie Facebook page, click on the ‘Like’ button, and you’ll be able to print a coupon good for $1/2 Sharpie Retractable Highlighters. Thanks, Hip2Save!