This was our invitation for this year. We dressed colorfully and went to a park, then had these pictures printed on cards. The program information was printed on other paper and glued inside the card once we figured out when we would be done with school and when the party could be. It's also a nice keepsake for guests to have pictures of our family.
The rainbow banner hanging from the top is made from a sweater that was found at Goodwill. I cut the strips of colors from the sweater then laced them together with ribbon and thread. The clouds are made from batting and simply tied and glued together. Was a simple addition to the background and brought out the theme nicely.
The children tie dyed their own shirts. Don't they look great?! You can see a tutorial of how they did them at the Bovee's Family Blog.