MINTD Box Boxing Day Deal: Get 25% Off Gift Store! Posted by Hello Subscription on December 26, 2017. Subscription Box Coupons & Deals / Mintd Box Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification MINTD Box has a Boxing Day sale on all gift sets! Valid today only! DEAL: Get 25% off on the gift store when you use GIFT25 at checkout! Are you getting MINTD Box?