I’m kind of in to how undifferentiated tissue becomes mature and acquires a specific morphology, so I liked this series of photos of a big hunk of driftwood being shaped into an octopus. It gets from here:
However, I’m used to development proceeding autonomously. I don’t think it would work if I just put a tree trunk and a chainsaw together in a beaker in my yard, which disappoints me. Is it a matter of getting the salt concentration just right? The temperature?