An interactive lamp that is controlled by colored RFID tags. When placing a tag close to the lamp it will gain the color of the tag, you can combine more than one and make any color with just basic Red Green Blue (RGB) colors.
I've used this lamp as an educational tool in both of the kindergartens I had been working in. It showed great success. It demonstrates light and color manipulations in an intriguing and fun way.
In the future I intend to develop this project and make a do-it-yourself (DIY) product that everyone can make and learn from.