personalized umbrella tie
A small strap or band attached to an umbrella handle, often used to write one's name for identification. Wasei-eigo from 'name belt'.
wasei-eigo (Japanese-coined English), from name belt
I attached a name belt to my umbrella so I can tell it's mine.
Wasei-eigo from English 'name' + 'belt'. The term is not used in English with this meaning.