I recall seeing a ICO for a coin that brings the Blockchain and crypto to legal cannabis sellers.
I thought  it was an interesting take on the crypto scene but having read this article and having seen many others like it with the increased interest and legalisation of marijuana I can understand that there could be a need for such markets.

Edit: Here's an interesting article: http://markets.businessinsider.com/news/stocks/Cannabis-and-Cryptocurrency-The-Time-is-now-1002275097