A great kids party can be fun for both the kids & adults. This baseball themed birthday that was featured on Life & Baby had so many fun elements for everyone to enjoy, with great food, snacks and lots of friends & family. http://www.lifeandbaby.com/2011/07/party-chicago-cubs-theme.html
When it was time for my little one's 1st birthday we chose a theme based on animals and when I came a cross some great birdhouses the bird theme emerged. We used a lot of re-purposed decorations and hired a non-profit animal rescue to do an animal presentation. It was both fun & educational. http://www.lifeandbaby.com/2012/02/party-birds.html