For a more common name, I would choose something like Daisy, which I'm very fond of but likely wouldn't actually use because of its popularity. The tattoo would look something like this:
This would also work for Marguerite, which I like!
For more uncommon options, I would go for either Wren or Juniper.
Wren:
Juniper:
And for something a bit more creative, I would do Artemis, and a moon tattoo, since she was goddess of the moon.