Guess the instrument

It's hard thinking of a gift for someone as special as my lovely cousin Georgina. We are 6 months apart in age, and as neither of us has a sister, we've always been close.

I know that if I need anything she'll be there, that she worries about me when there's something wrong (actually she worries about almost everyone), that she is competely fascinating and fun and gorgeous, and that she (amazingly) accepts me and supports me exactly as I am.

She's my confidante, source of parenting advice, great, great, great friend, and I LOVE her. It's her birthday soon, and I want to give her something special just because, so I'm working on a secret project (well, secret to her).

Here's a detail. I need to finish it by the end of the week. Fingers crossed!