From this author code

The Spine (Steam Powered Giraffe)

3B5LP8F

The Jon (Steam Powered Giraffe)

3B5LP8F

Hatchworth (Steam Powered Giraffe)

3B5LP8F

Rabbit (Steam Powered Giraffe)

3B5LP8F

Upgrade (Steam Powered Giraffe)

3B5LP8F

Zero (Steam Powered Giraffe)

3B5LP8F