1.Conceive a gadget.
2.Create cheesy artwork of the gadget.
3.Fabricate a set of specifications, a production schedule, and set a sale price, without doing any engineering.
4.Set a date for a public demonstration.
5.Cancel the demonstration a shortly before the due date, offering no explaination.
6.Act as the entire thing had never happened. If asked why the event did not take place, cite some unrelated, non-technical issue.
7.Go to step 1