New Doki Doki Crate Coupon: Get a FREE Kira Kira Crate Sampler Box! Posted by Hello Subscription on August 23, 2018. Subscription Box Coupons & Deals / Doki Doki Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Doki Doki Crate is offering a FREE Kira Kira Crate sampler box with any Doki Doki Crate subscription. Use the coupon code TRYKIRA to get this freebie! OR Use code HELLO to save $3 on your first Doki Doki! Visit Doki Doki Crate to find out more!