One Piece Chapter 18, page 18: Buggy, 'The Clown Pirate'

Buggy throws his knife-wielding hand at Luffy again with a 'THROW' sound effect. Luffy dodges the initial strike, but Buggy's hand curves around in mid-air. Buggy shouts, 'IF IT'S THAT PRECIOUS TO YOU THEN WHY DON'T YOU PROTECT IT PROPERLY!!!' The detached hand flies directly toward the straw hat that Luffy is holding in his hand.