This is one of my earliest patterns. I have been making catnip mice, mouse sachets, and weird little mouse toys for many years because people love them and it is a fun and easy pattern, using one 4"x 4" square and two 2"x 2" squares. They are easy enough to make multiples for craft fairs or church fund raisers.
Consider adding extra value with embellishment such as black beads for eyes or embroidered flowers to give your mice a whole new look. I chose to leave off the stitching for the nose, I think it gives them a cleaner, more modern look.
Enjoy this old pattern and may your home be blessed with pin loom mice!