Used an old TV (monitor 26 inches), or rather his body. First of all you need to remove all of the TVs vrutrennost need only his body.
Warning! It is better to let a professional do it electrician. Older TVs can be dangerous because they contain something called capacitors. These capacitors can store electricity for a long time, sometimes for years.
Now that the body is released from the TV all the viscera, you can proceed to further work.