Amy Pond's glasses
From Tardis Wiki, the free Doctor Who reference
This pair of glasses belonged to Amy Pond. They first appeared on her face when she was relaxing with the Eleventh Doctor in central park. The doctor used her glasses, saying he could see better with them. The Doctor kept the reading glasses after Amy was touched by a Weeping Angel. The Doctor appears to use them in the following episodes. The Doctor keeps the glasses for reading and a remembrance of his forever lost friend.