Folly: 1. Showing a lack of good sense, understanding, or foresight.
2. A costly undertaking having an absurd or ruinous outcome.
3. Something made or purchased for one's own amusement.
Aah, my rich uncle was always tinkering in his lab, and after lots of experiments, he came up with a sort of hover-craft, engineered for utmost performance. Once fully powered up, he could travel around town in quite high style. Uncle Pennybags was the talk of the town when he unveiled his flying machine!
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