Have there been any ICO (Initial Coin Offerings) that has been backed by redemption of a physical product? I'm doing some research on ICO's and wanted to see if there has been any ICO's that is backed by a physical product provided by a company? Aside from just funding the coin's development, the coin can function as an in store credit system? Which company or coins had this implemented?
I know at least two such ICO's EcoBit, which claims to be the "WORLD'S FIRST-EVER GREEN BLOCKCHAIN PROJECT". 

One thing that I like about the project is they have actually started physical work and have posted videos of their progress on their Facebook page (do check them out).

Another one that I know so far is mona.co,


  Introducing Monaco - world's best cryptocurrency card. Spend and send
  money globally at perfect interbank exchange rates, saving EUR30-40 on
  every EUR500 equivalent spent.