For my son's one-year-old birthday, I threw a "One Year Old in a Flash" party with orange and blue color schemes.
One Year Old in a Flash party from Elle Belle Creative (http://ellebelleblog.blogspot.com/2010/08/one-year-old-in-flash-first-birthday.html)
Bright orange and blue, sophiscated cuteness.
For the "One Year Old in a Flash" party, we hired a photographer to set up a photo booth in our living room to take cute pictures for our guests. I made the photo props including chalkboard thought bubbles and mustaches.
I also made the picture banners using my son's month 0-12 pictures. Another highlight of the party is the preparation of a time capsule for my son's 18-year-old birthday.
I made the cupcake stand with cardboard shipment boxes wrapped in orange paper table cloth found in Party City, decorated with little colorful triangle flags.
The cupcake stand
Use lots of different print papers that have the colors of the party. It creates a fun, colorful but united atmosphere.