FREE Smith & Cult Full Size Lip Stain With Birchbox Subscription! Posted by Hello Subscription on November 15, 2017. Subscription Box Coupons & Deals / Birchbox Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Birchbox is offering a free Smith & Cult The Tainted Lip Stained Flatte in Kissing Tiny Flowers with any women’s Birchbox subscription, while supplies last! Just use code SMITH&CULT at checkout!