Bamboo for diy centerpieces

Hi Juliana, bamboo is invasive, so you will not find fresh bamboo in a US garden. Chinatown in cities however, often have potted bamboo in various sizes. Pots are not large as they can grow in small containers. You might be able to propagate from one plant if you have time. For dried bamboo or similar plants, IKEA has options if you will provide your own vases. Good luck.