3.5 inch Audio 1-4 Splitter At least

[anarchicerror]

I need a 1-4 splitter or more for a 3.5in audio. Do they make them?
would joining alot of 1-2 splitters work?

Like 1 Computer 4 headphones?
would it burn out sound card?

Photoshoped
http://tinyurl.com/3z7frj