Free OREO Cookie Mint Shake at Jack in the Box on March 17 – Jack Pack members can get a free OREO Cookie Mint Shake with any $1 purchase on March 17. Free B.T.R Nation Bar After Rebate – Purchase a B.T.R Nation Bar and get a rebate via Venmo or PayPal. Free Wowbutter Samples – Complete the form and use code GIVING to get two free