In the urban site, with the policy of tenka fushin (nation wide constructions carried out by Tokugawa shogunate), people connected to construction, such as scaffolders and gardeners, were given special duties and rights (such as acting as firefighters) in the town's correlation and tended to monopolize the market for special good luck charms (rakes or morning glories) or items that would definitely sell (for example, New Year decorations); this unwritten law continues even today.
-都市部においては、天下普請の施行により、鳶職や植木職などの建設に係わる者が、町場の相互関係の中で特別な義務と権限（町火消しなど）を持つようになり、特定の縁起物（熊手、朝顔）や売り上げが確実に見込める物（正月のお飾り）の販売を独占する傾向にあり、現在でもその不文律が継承されている。