Groupon has a One-Month Premium Japan Crate Subscription (Candy Crate, Beauty Crate/Kira Kira, or Toy Crate/Doki Doki) for $19 - 20% off with coupon code SALE3 [Exp 11/8] = $15. According to Japan Crate's website, shipping is free.

The Snack Crate comes with 15 full-size Japanese candy and snacks, a collectible item, a Japan-exclusive drink, and a manga-zine.

Note: You will be charged for future shipments if you don't cancel after the first month.