In Revelation 2:17, Jesus says:

"He who has an ear, let him hear what the Spirit says to the churches.
To him who overcomes,
I will give some of the hidden manna.
I will also give him a white stone with a new name written on it,
known only to him who receives it."

 

When we arrive at God's Great Banquet
we will receive some hors d'oeuvre (hidden manna)
and a name tag (a white stone).