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,
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