Yeah, I used bamboo with soft ties to twist together and built little jungle gyms for them. I originally intended to just keep adding on to that, but when I mess with them it moves the whole plant around and tie downs get messed up. So I just leave them be.
I haven't had to support the tops yet on this grow. The colas are all supported up to about 30", but they are 48" tall! They also seem much more tree-like than my last grow (silica FTW), so hoping their support needs will not be as universal.