The Wall Street Journal profiles a few apps/services which have launched in Silicon Valley, but have been regarded as fake. When the goal is to push something out there, even if it’s a joke, how do people respond? As the founder of Jotly said, “Let’s think of the most ridiculous possible app that no one would ever consider a real thing, and make that…”

On the TacoCopter:

Meanwhile, the creators of TacoCopter, a service for delivering tacos with drone-like miniature helicopters, would love to have their idea taken so seriously.

After the project’s website got noticed in March, comedian Stephen Colbert and others treated it as a farce, and tech-news site Wired.com called it “completely fake.” (A Wired spokesman declined to comment.) Federal regulations prohibit commercial use of such devices.

But the creators say that they fully intend to launch the venture once the law changes, and one of them recently held a test flight overseas with the help of some fans. (The test aircraft crashed seconds after the taco was placed on board.)

So how do you differentiate all the apps out there?

Those seeking inspiration for the perfect pitch—or prank—might look at Itsthisforthat.com, which generates often absurd capsule descriptions of Internet start-ups by mashing up existing business concepts and buzzwords.

The site, which according to its creators has attracted more than 100,000 unique visitors, asks “Wait, what does your start-up do?” and follows with an ever-rotating set of descriptions such as “So, basically, it’s like a Google Analytics for Laundromats,” or, “like a news recommender for beer,” or, “like an Airbnb for restrooms,” a reference to the room-rental exchange for tourists.

Fun stuff.