I'll go ahead introducing the project, i haven't printed the chopsticks yet but i'll give you the 3d models and a pack that allows you to make your own chopsticks. It's very easy you only have to download the models and print them with your 3d printer or if you don't have one you can use online 3d printing services like shapeways.com or ponoko.com .
1) download the 3d models
2) personalize them or make your own model with my pack.
3) upload it to shapeways.com (THE MODELS ARE ALREADY SCALED, CHOOSE MILLIMETERS AS UNIT OF MEASUREMENT).
THAT'S ALL, IT'S SUPER EASY!!