For some reason I associate
Astor with toilet paper. I keep trying to think 'Waldorf-Astoria', but it doesn't work.
Esther is good; starry-bright, more austere than
Stella and much more attractive than hissy
Hester. The only ones I know are middle-aged, but it's never been popular enough to be associated with just one age group.
Have you read 'Skallagrigg'?