Elsie Dee and Ellie Dee.
I just made those ones up though.
Weird and wacky names aside, its interesting that people as less constrained when choosing names now. When I was a kid my class had four Steven / Stephens, four Andrews, two Nicholas’ six Nicolas, three Joannes, three Julies, three Sarahs, and so on – probably a pool of about 8 – 10 names for a class of 30. So we all knew each other by abbreviations of our surnames.
I recently ran a project in a primary school – a split year so 40 kids in my year group – and not one duplicate first name between them, but no weird and wacky names either.