How do I create a spiral in my bamboo plants, like I see in the Chinese restaurants? Do you have to bend them

Presently, my plants are about an 1/8 to a 1/4 inch thick. I've wrapped wire around them to create 90 degree bends, but would like to create a spiral.

How do I create a spiral in my bamboo plants, like I see in the Chinese restaurants? Do you have to bend them
When they're young, twist them around something. You can even tie them if you need to.

barber