CorSec Engineering release a printable starfield on their website:
From their announcement:
We have decided to start releasing the patterns for our Fabric Mats in a print and play version. We have teamed up with Wargames Vault to make these available to our customers.
Each PDF is contains a printable 108″ by 58″ pattern and a 72″ by 42″. We will be releasing all the patterns over time.
Pillars and Jets