Simile 1: Jagged boulders bobbed on the waves like corks, highlighting unexpected danger.
Simile 2: They were herded like stray sheep by a shepherd's dog, emphasizing their lack of control.
I can do that. Here are two similes in the chapter "The Wandering Rocks" in the book The Adventures of Ulysses with quotes:
1. "The sea was like a mill-race, and the waves ran mountains high."- This simile compares the sea to a mill-race, a man-made channel that carries water to a mill. This simile is effective because it gives the reader a sense of the power and size of the waves.
2. "Ulysses and his men were like ants on a log, tossed about by the waves."- This simile compares Ulysses and his men to ants, small and insignificant creatures. This simile is effective because it emphasizes the helplessness of Ulysses and his men in the face of the sea's power.