I am cohosting a baby shower for my sister-in-law next month. I'm in charge of the invitations but my cohost, (my mom,) wants to include gift ideas like gift cards for restaurants in addition to where she is registered. I know that this is an etiquette no-no and if people want ideas they'll ask when they RSVP. Should I anger my mom and not include this or should I add it in and send tacky invitations? Is there a good way to include this?
Edit: I'm not as opposed to listing her registries as I am suggesting specific gifts. The restaurant gift cards are so my brother can bring home dinner after baby.