A few years ago it was en vogue to believe that pyramids had mysterious special powers. They could sharpen razor blades and stop fruit from going off. I've also heard that the whole idea was a deliberate hoax but I might be getting that mixed up with the Spider.
Anyway, I propose the following: Make a large number of baseless cardboard tetrahedra and sell them to three gullible people. They then send you some of their profits when they sell them on, each to three more people. After twenty-one iterations of this process, everyone in the world has a pyramid and has sent money up to the top. Hence the pyramid scheme is tetrahedral, which is nicer than a square pyramid, and nicely appropriate.
Everyone will be so impressed by the elegance of a pyramid pyramid scheme that they will recognise it as a performance art project and won't dare to sue or prosecute you.-- nineteenthly, May 18 2017 Thirteenthly https://www.goodrea...1617-arachne-risingJohn Sladek's hoax astrology book [nineteenthly, May 18 2017] // stop fruit from going off. // That would be useful if it were true. The number of times I've bought a guava only to have it wander away.-- MaxwellBuchanan, May 18 2017 You could try wrapping it in bandages, [MB].-- nineteenthly, May 18 2017 Don't start on the business of African swallows being non-migratory, or lifting coconuts using bits of creeper - you can get in real trouble that way ...-- 8th of 7, May 18 2017 You could promote the pyramids as having the special powers, then if they don't work, claim it's because they needed to be charged by placing them inside a larger magical pyramid. So you sell them the larger pyramid. Which of course needs to be placed inside an even larger magical pyramid to get it's magical powers, and so on.-- caspian, May 19 2017 I once jokingly told someone that the pyramids had accidentally been built upside down because the architects had the blueprints the wrong way up. I assumed she realised I was joking. Several years later, she berated me for stringing her along. Astonishingly, she was actually an archaeologist!-- nineteenthly, May 19 2017 random, halfbakery