On the more prosaic end of the scale:
Bingo Card Creator, circa early 2007: http://www.bingocardcreator.com/old-site/index.htm
It doesn't exactly scream "This will certainly sell a quarter million of software, allow you to quit your day job, and fund your software business."
You'd find similar things floating around if you were to look at the early history of most companies which are widely idolized in our space. Nobody ships perfection on day 1. Luckily, customers are happy to pay for imperfect things.