At one or more points during the stitching, you may see dielines
and tackdowns on the thread list. These are where you'll add your
applique details. In this case, a dieline stitches for the hat.
Spray the back of your felt hat piece, and place it so it completely
covers the dieline. Then a tackdown will stitch to hold the fabric
in place. Once all the details and applique bits have stitched,
lightly spray the edges of your other body piece with temporary
spray adhesive, and place it on top of everything. The last thing
that will stitch is a finishing seam to sew your plushie together,
leaving the bottom edge open.