You can buy ornamental lucky bamboo already curled into its typical spiral shape. Or, you could curl your lucky bamboo yourself. Like any other plant, lucky bamboo grows toward the light. In nature, the light supply is above it so bamboo goes straight. But if you move your lucky bamboo's light supply, the plant will follow suit. It takes patience and regular vigilance, but with the right tools it's easy to shape a lucky bamboo plant into any whimsical shape you desire.
Find a box that fits over your lucky bamboo with 2 to 3 inches of height to spare.
Cut out one of the sides of the box.
Place the lucky bamboo near a window and put the box over it. Turn the box so that the open side faces the window. Eventually, the tip of your bamboo plant will begin to grow toward the light.
Turn the bamboo plant once it begins to grow toward the light. Turn it roughly 1/2 inch.
Continue to turn the bamboo plant at regular intervals. One curl may take more than one year to complete.