The Big Bad Cat Blanket is finished and on its way to my feline great-nephew. YAY!
Since the yarn used is Plymouth Encore (80% acrylic/20% wool), I read up on how to block acrylic.
Among the suggestions are:
wash and dry according to label instructions
soak and pin and let dry
spritz and steam.
However, I didn't read anywhere of the Let A Cat Sit On It method