Another blast from the past.
Many years ago, my elder brother was the local milkman for Tanunda and Nuriootpa townships in the Barossa Valley.
It's the job he took on after leaving the Broken Hill mines in the early 80's, and he continued this job for around 20 years.
One day we were sampling the wares at one of the wineries, and him being a well-known 'local', we were given some
extra priveledges, that is, we had 'house branded' wine glasses with which to sample their products.
A tour bus pulled in, and the travellers stared at us as as tho' we were royalty, as they sipped their samples from plastic cups.

Edited to add...
Ian also owned a sizeable vineyard, and several wine cellars competed for his grapes.