Maybe RocketSkates? http://arstechnica.com/gadgets/2014/10/feet-on-with-rocketskates-which-are-exactly-what-they-sound-like/ http://arstechnica.com/gadgets/201

Maybe RocketSkates? http://arstechnica.com/gadgets/2014/10/feet-on-with-rocketskates-which-are-exactly-what-they-sound-like/ http://arstechnica.com/gadgets/2014/10/feet-on-with-rocketsk...