Cardboard Karaoke
€29

Create your own karaoke night with surprisingly little tech. Cardboard Karaoke is, as the name suggests, made from cardboard, The retro machine keeps things simple, requiring only a couple of batteries to get going, plus your smartphone for backing tracks. You have two dials: the left for music volume, the right for mic volume, and once you have your karaoke app of choice loaded up you are ready to go. Simply pop in the batteries, plug in the mic and get ready to annoy the neighbours.
www.firebox.com