18. Big Mouth Billy Bass
If you didn’t know that this silly toy was a commercial success, let us tell you that it was released in 1999 and even today you can buy it on Amazon for 50 bucks. Failed products definitely do not sell for 18 years and seriously, this fish was everywhere in early 2000s. A Largemouth bass is made of latex rubber and will sing and perform (quite well) once you press the red button below it. Kids loved it, adults laughed at it and hundreds of thousands of units were sold. The inventor Joe Pellettieri and his company made fortune selling it (as you might already guessed after seeing the current price). Now, enough of the fish and let’s talk about making half a billion dollars on positivity – something you have seen many times. Want to guess?