Make: Projects user kyleclements details how he built a piece of artwork that is seemingly a blank canvas, but actually, there are IR LEDs hidden behind the canvas. The IR LEDs are arranged in a secret design that is revealed by taking a digital photo. The digital camera sensors pick up the IR light that our eyes can’t see.
Using a recordable greeting card, Michelle Min made a hand puppet for a friend’s 2-year-old nephew, living far away in Korea. When the puppet lifts its right arm, it says “Bosung!” (the nephew’s name) and plays some music.
Instead of buying a laptop charging case for $200, make your own using this tutorial from Make: Projects user Matthew.
“Coiling is a very elegant way of dealing with the problem of unsightly slack cables.” Sean Ragan explains how to curl cord using a heat gun and water.