Thanks to all of you, they are all great ideas!
The "prizes" will be small, I know they already have a couple of humming bird feeders and some seeded pots (actually they are eggs with seeds in them, crack open the top of the egg, water it and flowers grow), I have glass picture frame, and I am going to pick up a few more things that could be good for adults or kids.
I realized last night that there are going to be quite a few kids there under 9 years old. I think I will set up a table for them with crayons, coloring pages, and some other activities in case they get bored.
I truly appreciate all of your help!! Such a great group of people.