1-The sneaky boy is like a sly fox. 2-The boy is as sharp as a tack. 3-I am as free as a bird, on vacation. Or On vacation I am as free as a bird. 4-The mom is as busy as a bee. 5-The obvious answer was a plain as day. 6-My fluffy dog is as cute as a button. 7-The tired boy went out like a light.