Not sure if this should be in the Wii U thread or not
http://nintendoeverything.com/nintendo-ips-can-officially-be-used-for-fan-projects-endorsement-scheme-announced-for-japan/
Apparently this includes "Let's Plays, music covers, fanarts." Not sure how far this stretches beyond that, but it's still sounds like a pretty deal.
Edit: Literly seconds after I Posted this, the article was updated. It's for a really specific thing, and not widespread at all. Completely wrong, please ignore face