I checked; I remembered the wrong analogy: http://www.investopedia.com/terms/p/pick-and-shovel-play.asp http://www.investopedia.com/terms/p/pick-and-shovel-play

I checked; I remembered the wrong analogy: http://www.investopedia.com/terms/p/pick-and-shovel-play.asp http://www.investopedia.com/terms/p/pick-and-shovel-play.asp I am talking of a pick and shovel scheme. I should be ashamed, but I am not :) It is still the rigt idea and something already heard of.