BOGO sale. Buy one box of Kindly, Hale, or Halcyon (duck) and get 1 free. No limit!!!
Use promo code: HHKBOGO
I tested it and the coupon works, but you MUST put 2 of the item in the cart for the coupon code to work.
If you put only one in the cart expecting the freebie to just show up the way a lot of sites do, it doesn't work.
If I find a cat version of the BOGO, I'll post it separately.