Overview: Jon Bentley considers getting some serious skin bling, as he, Ortis Deley and Georgie Barrat stop off at the Vivid Ink parlour. Could the latest thing in electronic artistry help the resident needlesmiths become still more creative? The team also assesses the work of scientists at the world-renowned California Institute of Technology, who are now using augmented reality to allow people to see with their ears and cybernetics to help them walk on just one leg. Plus, a report on the latest full-frame mirrorless cameras from Nikon and Canon.