If you have a lot of books at home, a cheap book safe like this is a good way to hide small things. The inside storage area is 2″ x 5.625″ x 9″ and the book looks like a dictionary. (Crooks already know to scan bookshelves for The New English Dictionary, so you should put a jacket from another book on it.)
It has a lock and two keys to discourage snooping if someone pulls the book off the shelf.