Mantry Cyber Monday Sale: 20% Off All Mantry Crates! Last updated by Hello Subscription on November 26, 2018. Black Friday & Cyber Monday Subscription Box Deals & Coupons / Holiday Subscription Box Deals & Doorbusters / Subscription Box Coupons & Deals / Mantry Coupons / Food & Snacks Black Friday + Cyber Monday 2021 Coupons / Men Black Friday + Cyber Monday 2021 Coupons Make the first comment! Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for LaterGo to commentsNotification Cyber Monday Sale on Mantry! Save 20% on all Mantry crates in the shop or on a monthly plan with coupon code BLACKFRIDAY20 Check out all of the Cyber Monday Subscription Box Deals!