Printing:
Print the heads with face to the build plate without support.
Print the bottom vertical with support.
Print the legs vertical with brim.
Assembling:
You can simply put together all parts. If needed you can use some glue.
Additional Heads:
For a reindeer head for christmas look here: https://www.printables.com/model/1108352-toilet-paper-reindeer-head
The author remixed this model.
I added nose holes to sheep head. The head can be printed as one part. Print with face to build plate. I also increased the tolerances for all parts for easier assembling.
Cow and Cat heads:
Inspired form the original model I designed some additional heads.