Build a model hovercraft out of cardboard. Complete with a WiFi module you can control it with your own smartphone or tablet. The kit includes everything you need to build the hovercraft. It is constructed from cardboard, with some electronics to provide the control and to lift and propel it. Construction involves cutting, hot glue, and sticky tape. Those aged 6+ can attend, but those under 10 will need full adult attention throughout. You will need to bring a smartphone or tablet to use as the controller. Bring along anything you want to decorate it with, stickers, paint, and pens etc. Keep things lightweight, because it won't work if you make it too heavy.