>wear them around his neck
The true gentlemen's handkerchiefs that I've seen are not large enough to tie around the neck. Handkerchiefs go in the pocket. Bandanas are the larger type of kerchief that can be tied around the neck or folded into headband.
>to create eight patterned handkerchiefs
Yesterday, anon posted a Tom Hanks twat displaying one of the kerchiefs. The design on the kerchief was a desert mountain scene with a camper. Funny, that design was not available on the Hanks website.