I always wanted a ambient light for my desktop background. I got the idea to make it from the multiple usb port which was lying in my house which costs not more than 2 bucks.
Step 1: Materials Required/ Other Uses
Usb port hub with light
Glue / glue paste
2 in 1 use (it can be as usb port and ambient light )
CPU ambient light
Step 2: How to Make?
Take the usb hub and put it in back of your monitor and connect it to the usb port, your ambient light is ready.
If you need more effect just paste a paper to background wall which gives more effect/ light like white paper, it will give more effect.