A few years ago I was trying to find a way to save a bunch of old phone chargers from being thrown away. We were having a leaving party so I thought I could make them into cool moodlamps that we could use instead of candles.
I made a ‘howto’ which has been viewed over 10,000 times on instructables.com, and I’ve been collecting photos of the best ones.
I’ve since started running it as a group workshop for young people, learning about resuse and basic science and electronics. You can download the details here: moodlamp workshop.