Perfect gift for teenage girls

I just had to have this keychain for my daughter.  She is about to turn 19 and is out of the house now and frequently calls home to share her shenanigans.  What can a mother say?  She is making stories that will stay with her for a lifetime and figuring out who she is.  I worry.  It just so happens my daugher has a thing for buttons and .. you guessed it, keychains.  This is a great way for me to be that worrisom mother who stays in her mind and yet not have to be nagging.  She told me that every time she notices it on her backpack she smiles.  I've noticed she calls home more often and conversations now start off 'hey mom, I was looking at your keychain and I was thinking....'.  Thank you for another way to keep my child close to me.