From the April 19, 1873 issue of Punch.
As innocent this may seem, the fashion of wearing one's hair in the form of an octopus -- popular among the London elite of the 1870s -- would later develop into the wide-spread use of taxidermied octopuses as decoration for hats, that would in turn lead to excessive poaching of the Pacific Northwest Tree Octopus, helping to bring about that species' endangerment.