A.T.
Just wanted to mention, if you decide not to make your own cake, Byerly's offers a free cake for first birthdays! All you need to do is bring show the birth certificate.
One thing I didn't do at my son's first birthday, that I wish I had, was take a group picture. I would love to have had a picture of everyone that was there. I would also have loved to have a picture of my son with various guests. I captured the classic "cake eating" and "present opening" pictures, but not enough of the guests.
One food we randomly put out that I was so grateful for, was cheese sticks. The kids loved them and they're not messy!
One option for food would be to make little sandwiches inside of the refridgerated (sp?) croissant dough. For example, if you put ham and cheese inside before you bake them - they are delicious. Little hands can hold them relatively easily and the food stays contained in the croissant. My friend make them with a chicken mixture inside.
Have a blast!