A group of developers are attempting to revive the Zano drone - one of Kickstarter's most notorious failures. The handheld quadcopter raised £2.3m from more than 12,000 backers on the crowdfunding platform before the project imploded in 2015. The resulting scandal prompted a probe that found fault with all involved. The Zano Camera project is one of several initiatives on show at the CES expo that make use of seized assets from failed crowdfunding campaigns. The person leading the effort is Vernon Kerswell, chief executive of Extreme Fliers, a London-based micro drone manufacturer.

You might not know many micro-drones by name, but there's a chance you know Zano. Unfortunately, that's because it was one of the more controversial Kickstarter failures of recent times. Zano raised over $3 million in late 2014, before being shown at CES 2015. The promise was simple, a palm-sized drone with the self-flying and photography smarts of something much bigger (and much more expensive). The problem is, just 12 months later, the product was already delayed, the company had spent all its funding and the creditors moved in to liquidate the assets, leaving thousands of backers high and dry.