Switch between 2 audio inputs

[H4nn3s]

My problem is: I have a PC to output audio over a 3.5mm port and another device to output audio over a 3,5mm output. I only want  to use one sound system, and so i need a device with which i can switch between these to outputs, without having to reconnect everything with cables every time.

Does something even exist?

[TheKDub]

http://linustechtips.com/main/topic/217479-diystereo-io-ab-selector-image-heavy/

 

Works both ways, plug one input in and you get two outputs, or plug two inputs in and you get one output. (You can switch back and forth between the two)