- Tech executives like Larry Ellison, Jeff Bezos, and Elon Musk have found unusual ways to spend their billions.
- Elon Musk bought the submarine car from "The Spy Who Loved Me," while Jeff Bezos dredged pieces of the Apollo 12 engine from the bottom of the Atlantic.
- Oracle billionaire Larry Ellison owns 98% of the Hawaiian island of Lanai.
- $4.
If you're among the richest people in the world, chances are you've found some unusual ways to spend your money.
That's what tech executives like Larry Ellison, Jeff Bezos, and Elon Musk have done, anyway - they've spent money on everything from a massive chunk of the state of Hawaii to the submarine car from the James Bond film "The Spy Who Loved Me."
Some tech billionaires are $4, while others spend money on more conventional expenditures like mansions or fabulous vacations. And while the tech billionaires featured below own their fair share of homes and yachts - plus found time for more noble pursuits like donating to charity or $4 - they've also used their billions to pursue passion projects.
Here are some of the more unusual and extravagant ways tech executives have spent their money.