You can see them in many places, like this one.
But in case you're short on time, here are our favourite three:
- John and Mary had never met. They were like two hummingbirds who had also never met.
- The lamp just sat there, like an inanimate object.
- The ballerina rose gracefully en point and extended one slender leg behind her, like a dog at a fire hydrant.
And in case you're forgetting what you learned in English class:
An analogy is a comparison between two things, typically on the basis of their structure and for the purpose of explanation or clarification. (The sound of his promotion was music to his ears.)
A metaphore is a figure of speech that constructs an analogy between two things or ideas; the analogy is conveyed by the use of a metaphorical word in place of some other word. (Her smile was a small ray of sunshine to everyone on the trading floor.)
A similie is figure of speech involving the comparison of one thing with another thing of a different kind, used to make a description more emphatic or vivid. (When Friday rolled around, he was happy as a pig in shit.)