I like
Poppy too, but
Polly is much fresher and more unexpected in today's name culture, so I'm liking that more. They are kind of in the same category of "quirky", but
Polly is, obviously, much more vintage.
I like
Polly Scarlett myself, which it a weird combo for me, but it just came into my head one day and now I can't get rid of it.
(also one time I typo'd
Poppy as Poopy and since then I can't help thinking "poopy" whenever I see it, I ruined it for myself.
Poppy is also my default dog name for if I get a dog and keep calling it "puppy" for lack of ideas. Poopy
Poppy would be really fitting in that situation I think).