Lego Boost Creative Toolbox £150 / stuff.tv/LegoCreativeToolbox
Building Lego models is already ridiculously good fun, so think what great a time you’ll have when the completed model turns into a functioning robot. With the accompanying tablet app, you can use simple coding to make the robot move, fire projectiles and play various games. And rather than retiring it to the dusty shelf once you’re bored, you can rebuild him into four other programmable models: a harmonica-playing cat, a driveable rover, a working robot-builder and a playable guitar.