These 20 Ridiculously Simple Ideas Made Millions

During Christmas 1998, the Furby was in high demand: So much so that many Furbies were being sold for several times their original price. They sold 40 million units of the glassy-eyed alien in the first three years, and sales of the toy are still incredibly high today.

In 1993 Jonah White, watched dental student Rich Bailey try to pick up girls while wearing ugly false teeth. He started chatting to Bailey, and the dental student agreed to show him how the teeth were fashioned. The pair teamed up and created the Billy-Bob Teeth business. Today, 20 million units have been sold, resulting in over $40 million in sales.

This novelty is exactly what it sounds like: A life-sized wishbone made out of plastic that’s meant to be broken in two. Incredibly, Ahroni was able to sell each of them for $3.99, netting him millions of dollars in the process.

One out of every 13 children have food allergies, and Iris Shamus’ son is one of them: He’s allergic to peanuts. Shamus wanted to make sure that his teachers and caretakers always remembered his serious allergy. That’s what inspired her to come up with AllerMates, the cute bracelets that depict which allergy the child has. Today, the bracelets are sold in 7,000 locations across the United States.

When applied directly to the forehead, it supposedly relieves headaches. Like most things in the Internet age, HeadOn became popular thanks to an unbearably annoying commercial that went viral. While the product is made almost entirely of wax and cannot be backed by any scientific research, more than six million tubes were sold for $8 each.