Button

HAMLET. My excellent good friends! How dost thou,
Guildenstern? Ah, Rosencrantz! Good lads, how do ye both?

ROSENCRANTZ. As the indifferent children of the earth.

GUILDENSTERN. Happy, in that we are not over-happy;
On fortune's cap we are not the very button.


William Shakespeare: The Tragedy of Hamlet, Prince of Denmark (II.2)