Baby Shower Onesie Sign In - I would use fabric markers instead of sharpies in case the mom wanted to lave the baby actually wear it and wash it later. Sharpies will run!!
Baby fruit salad - great baby shower idea! I'm making this for my sister's baby shower! So cute!
Rehearsal Dinner "packets" - wedding schedule for everyone, list of phone numbers the wedding party might need the day of, etc.