This are some pc speakers hacked in a way that you can use them as a sound play station.
I just opened the amplifier, found out different connections on the circuit board which sound nice and marked them. Then I soldered cables on the spots and connected them to the unused circuit board I got from a friend. So you can use your fingers to build the bridge in the electric circle.When you touch the right points you can just play the control panel like a keyboard and also bend the sound the way you press it.
In addition I put the volume and the bass potentiometer each on one panel.
When you play both panels a the same time the sounds influence each other which gives you even more possibilities to play with.
ehhh??? sounds tooooo weird to you!? Don't worry I will add a video later on, so you can see how it works,