Matthew - I love how this meets a couple of different needs, including putting the responsibility on planning on students. Also, feel like there is so much to learn from TED Ed on how to make this replicable. Also, check out http://DIY.org for inspiration on how students can showcase their talks and work. Good stuff!
Clint --Dude... you're back again tearing it up! Such a cool idea! I feel like when you transition to being an instructional coach, you're going to have a porfolio of new best practices to try out. Good luck with the close of the school year!!