The Collectors Case May the Fourth Coupon: $5 Off! Last updated by Hello Subscription on May 4, 2018. Subscription Box Coupons & Deals / The Collectors Case Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification The Collectors Case has a May the Fourth Sale! For a limited time, use coupon code MAYFORCE to save $5 off any store purchase!