This model allows you to give a canine head to your Dummy 13.
Why?
Why not!
I did a few test prints with PLA and it seems to work. Follow the same printing instructions as Dummy 13 and it should work fine. Reorient the model to print on the flat surface on the back of the head. You shouldn't need any supports or brim.
The author remixed this model.
I used TinkerCad to isolate the head of the low poly golden retriever model, scaled it to match the Dummy 13 head, and then added the mating surfaces of the Dummy 13 head so the new head can be used.