Tuna Mornay in Volivonts (make the mornay then fill the volivonts, top with a little cheese and pop in the oven for a few minutes. You can get mornay packs in the supermarket).
The fruit kebabs are always a hit, serve with some yogurt or honey for dipping.
Cheese and tomoato on crackers always works.
You can make veggie chips - use a veggie peeler to cut the veggies (potato, sweet potatoe, carrot etc), place on baking tray, spray with a little oil, put in a hot oven until crispy. Healthier version of chips.
Bruschetta
Spring rolls (not exactly healthy though)
You could go for some fun childish things like fairy bread and chocolate crackles.
rice paper rolls (can buy them from Vietnamese shops or make them. I have a couple of reciepies I can send)
Prawn or salmon cakes (AKA patties)
A cheese platter
Antipesto (sp?) - olives, sundried tomatoes,cheeses etc etc and appropriate bread on a platter. Actually, I think you can order these ready made from Coles and Safeway deli sections?

HTH - I have a million cooking books and LOVE this kind of stuff! have a great Baby Shower!

MG