And finally… The age-old (ok, two-year-old) problem: you have a large new smartphone, but can’t reach the top of the screen. Worry no more thanks to Thanko of Japan, which is selling a ‘thumb extender’; the Yubi Nobiiru (literally ‘stretched finger’) slips over a real digit to add another 15mm to your reach. A conductor at the tip of the ‘thumb’ makes it touchscreen-compatible.