Luna's Song for Marietta

I've got a new potion, Marietta
Professor Slughorn helped this time
It's got ground unicorn hair
And extracts of basil and thyme

Cho's making you a hat for Christmas
The wool is bronze and blue
But maybe we'll be lucky this time, Marietta
And this will be my gift to you

So hold still, Marietta
I hope this potion doesn't sting
But you know what I think, Marietta
To me your scars don't mean a thing

I know you don't believe in Snorkacks
And you think my earrings should be food
But you'll never say that, Marietta
Because you're sweet and you don't want to be rude

Hermione thinks she's so clever
But clever doesn't mean she's wise
I think even she'd cry, Marietta
If she saw the look that's in your eyes

So hold still, Marietta
I hope this potion doesn't sting
But you know what I think, Marietta
To me your scars don't mean a thing