Whimsical Bookstore + Bonus Cat
This is a bookstore in Williamsburg that sells various oddities and books. They also have a room for tarot card readings. Everything you find there can make a great eccentric gift.
Bonus: there is an adorable cat named Gracie who sleeps on the counter. She is a sweetheart and this bookstore is worth a visit just for her alone.

Quimby's Bookstore NYC
Williamsburg, NYC