I've hosted many a shower - in good times $$$ and in some lean times $. Here are a couple of things that I've done, and they are always a hit!
Take a pretty platter, place a small bowl in the center, and fill bowl with Hershey's (or store brand) chocolate syrup. Wash strawberries and pull the greens back but not off. Arrange the berries in concentric circles around the bowl of chocolate.
Buy ready made frozen mini quiches. Bake and serve warm.
Make ahead - mini stuffed mushrooms ( you can even stuff them with quick stuffing mixes that you buy and are ready in a few minutes). Arrange on a platter around a bowl of gravy / hunter sauce that you make from a package mix.
Make sandwiches - egg salad, tuna salad etc.. Cut the crusts off carefully with a sharp knife, and then cut in 1/2 or 1/4 and arrange on a platter. They always seem so much fancier with out the crust and cut up!
Make a vegggie tray with the usual - carrots, brocoli, cherry tomatoes.
Serve a large bowl of punch.
You can make the sandwiches ahead and seal them tightly and refrigerate. The mushrooms can be assembles the night before, berries washed the night before and arranged. The day of the party, you just have to set everything out, warm the quiche and mushrooms, make some punch and viola! I always have fresh flowers on the table - inexpensive flea market or grocery store variety arranged in a vase. If you have time, you can buy ahead and stock the non perishables - like the chocolate syrup, gravy & stuffing mix, punch ingredients - and Oh - crackers and cheese - crackers can be bought ahead too! In my house though - if I buy that stuff ahead, I have to tie it up in the bag and hide it in the guest bedroom closet or my husbands midnight munchies will take care of!
Good luck! Have fun.