As a horticulturalist as neat as this would be, reading the article i got a real chuckle, it must be a gag, to grow on a piece of bamboo that can create perfectly shaped pieces of circular metal would never work for a number of scientific reasons, however, you could theoretically buy a bamboo plant that is naturally tapered, train bamboo branches into guides, and insert metal rings inside the bamboo guide, however this amount of effort would be difficult and take many hours of labor, and you would still require metal inserts as installation. To get a better idea of what I'm talking about, look up circus trees.
Gmo and GE are the same thing