How to Save Grandma in the Mind of Your Listeners

My childhood best friend is pregnant and her mother in law is hosting a baby shower for her. Should I get a gift for the other mom to be? If so, what should I get her? Only her first name is on the invitation but with some sleuthing, I did find her registry. Do I number two, do I bring a hostess gift for the mother in law who is hosting this party at her home? It's about time that somebody stood up and said firefighters, big deal.