devtrackers.gg
They'll ship in September, and arrive for people in early October. From the product page:
This product ships September 28, 2021
Shipping
The Unturned Chef Zombie Plush will be shipped 2-3 months after the Campaign end date.
Note: Due to the pandemic, delivery is restricted to certain countries listed here.
Delivery
Once shipped, estimated delivery is 7-15 days.
Ah okay, I thought I was missing out on something because it’s been 75 days. Thanks for telling me.
Just to follow-up on this, emails started going out recently. You should check your email for shipping/tracking info, and for the CD key used to redeem your in-game cosmetic as well.