Wow, you've gotten some great suggestions so far! Two things that I have had at showers that were a hit and were Soooo simple. 1) a platter of large strawberries washed with green tops left on but pulled back, arranged in a circle around a small bowl of chocolate syrup, and 2) stuffed mushroom caps, wash and lay out on paper towels to dry, pull the stems the night before, whopping up a box of stove top stuffing mix and spoon into mushrooms right, warm in the oven height before serving, arrange on a pattern on a platter around a small bowl of Knorr "hunter sauce" or some other sauce/gravy that you might like. Don't forget to put a small ladle or spoon in the sauce so people can top their's if they wish or not. There are fancier stuffed mushroom recipes out there, but when you are busy busy busy getting everything together, this is a super easy, super fast one that is fool proof!
You didn't ask, but here is one thing that I did too that everyone liked. I bought a beautiful stuffed bear and put a really nice pink or blue ribbon around the neck, bought a bunch of travel size products, nasal asperator, thermometer, pacifiers, rattles etc.....I had it all "ballon wrapped" with items arranged around the bear on a bed of shred. I used it for the centerpiece on the table and everyone was checking it out and commenting on how it looked and how awesome it was. At some point well into the shower, I either remove it, or cover it with a towel and hand everyone paper and pencil and play the "memory game". The person who remembered the most items won a small prize, and the "mother to be" got to take the centerpiece home as part of her gift! Have fun!