What are the historical allusions of Dongyang woodcarving?

It is said that Master Lu Banhua of the Tang Dynasty built a big hall for Su Feng and Ding Feng brothers. When preparing to connect the beams, he found that all the nanmu beams of 180 were one foot and two inches short. Lu Ban was shocked! An old man came to the door asking for fish and meat, and was entertained by Lu Ban. The old man moved two fish tails in two bowls, like two fish heads facing each other, sticking out one piece, then clamped two mouths with a chopstick and walked away. Live Luban suddenly realized that he immediately ordered craftsmen to make 360 fish heads and fix them on the stigma. This way, the fish head is novel and beautiful, and the fish head is homophonic with the "leftover head", which is very prosperous. Later generations put brackets on the fish head, which became the earliest Dongyang woodcarving.