Airport Revenue Bond

A revenue bond, in general, is a municipal bond issued with the express purpose of borrowing money to fund a particular, income-generating project, and is usually secured by that project (in this case, an airport).

When your Shmoop education invariably leads to you being rich enough to buy your own island, you may consider building an airport on said island. But you'll be smart enough to not use your own money. Instead, you'll form a government, have that government issue airport revenue bonds, use the funds raised to build the airport, charge airlines to utilize the airport, and use part of the revenue from those airlines to pay the interest owed on the bonds.

Just remember to also use some of that revenue to hire a bodyguard for your offspring, Mr. Lindbergh.