Mostess Box Sale: Winter Box $99! Posted by Brandy on January 5, 2017. Subscription Box Coupons & Deals / Mostess Coupons Make the first comment! Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for LaterGo to commentsNotification Mostess sale on the winter box – get it for $99 + free shipping! Offer ends 1/7. We have complete spoilers for the Winter 2016 Mostess box! Check out our Mostess Reviews to find out more about this box.