Fanchest NBA & NHL Box Deal: 20% Off Any Box! Posted by Brandy on March 17, 2017. Subscription Box Coupons & Deals / Fanchest Coupons Make the first comment! Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for LaterGo to commentsNotification Fanchest has a deal for all their NBA & NHL boxes! Use coupon code PLAYOFFS2017 to save 20% on any chest! Ends 3/26.