cookie jar
Noun
Meaning
a jar in which cookies are kept (and sometimes money is hidden)
Source: WordNetSynonyms
Hypernyms
Examples
I found out when I did the Oprah Winfrey show that there was a cookie jar of me. So she gave it to me. I had no idea prior to that that it even existed.
Honey, a man can't keep his gun in a cookie jar. It just isn't done.