Sister's souvenir!!

Just receive my souvenir from my beloved sister who visited Boston.
Thanks sister and thanks Ken for bringing this souvenir to us.
Hey sis, can I know the left one, what should I do with it? Hand it around my ear?
The key chain was so cool because there is HARVARD carved on it. HAHAHA!!
Top university key chain. Now that is something special!! xDDD
Thank you so much sister!!