There are two scripts to create finders from either A) an image you have, or B) an image of a TNS or ZTF transient that you don't have that you want to download from PS1.
First install it with python setup.py install, and then you can run it like this:
make_finder.py image_name.fits
get_finder.py SN2016iet
get_finder.py 2018hyz
get_finder.py ZTF18ablvime
Or you can run without specifying the object name, you will be prompted as the first step.
The result will be an image like this:
You will be prompted if you want to change the target Name, RA, DEC, filter band, image size, and if you want to add an offset/guide star.
If you would rather use it as a package:
from finder_maker import create_finder