Staples: FREE Pentel Pens After Staples Rewards June 11, 2011 This post may contain a link to an affiliate. See my disclosure policy for more information. Beginning tomorrow, 6/12 through 6/18, you can score a FREE 18 pack of Pentel WOW! pens after Staples Rewards! Pentel WOW! Retractable Ballpoint Pens, $8.29 Get back $8.29 in Staples Rewards (limit 1) Final cost: FREE! Thanks, Mr. C!