Thanks everyone for all your great suggestions....the soda/beer cooler idea intrigued me, so I went a pattern-huntin'
And I think I've narrowed it down doing these for her:
and, to match...
Wine Glass Holder
(no better reason to bite the bullet and break those circs I keep buying out of their packaging
Have the perfect yarn, as far as colour is concerned - her campervan is Savannah Beige...now I just need to get to grips with my tension gauge issues - but that's another post