You never know when you're going to get stuck without a way to charge your mobile phone or some other gadget. If you need to create a charging system in a pinch, YouTuber The Kind of Random shows off a simple trick to make a human-powered charger using common household items.
This hand-cranked generator requires a cordless drill, yarn, aluminium foil, a mixer, a wooden fork, wood and tape. Basically, this system allows you to tap the charger into where the cordless drill would usually connect to a battery, and then sending that energy to the phone when you crank the drill.
It's similar in theory to a hand-cranked charger we've featured before, but this one doesn't require any soldering knowledge. Of course, projects like this come with the risk of overheating or damaging the equipment, so take this into consideration if you want to give it a go.