I helped a friend recently and we did the following...the baby is a boy
She served her snacks out of toy dump trucks. All the primary colors looked awesome on the counter...we put the baby's name on the trucks with stickers.
I made a 'sandbox' out of a cardboard box. Cut grass fringe out of paper glued it on, popsicle stick swing, etc. (if you are interested I can send you a photo). We poured dry rice in to mmic sand and then she served her potato chips and crackers out of that.
She also had this great idea to give the Mama and Daddy to be a 'special' gift. She melted hershey kisses and then smeared them in diapers...So of course it looked like dirty diapers. She also wrote a really cute poem from the baby to Mama and Daddy...I added that to a special 'digi' tag for the bag. So the bag looked really nice...and then they got poopey diapers...it was really cute and a definite Kodak moment!