This is another variation of the well known 8 animal - 4 train/bus sounds device. This is the very first toy i modified.
It's a simple black blob IC toy, and i only found a pitch change mod and som heavy distortion.
This thing dosent sound very good, i suffers from some serious high pitched squeeking.
Another variation of this toy exists that looks identical, but have 3 separate black blob IC's, and a lot more bending potential. You can see it here.
Fixed pitch resistor changed to master pitch pot.
Pitch up and down body contacts.
Blue power on LED.
Flashing green LEDs added in all the animals eyes.
I used one of those flashing LED christmas tree kits for that, the wiring was a nightmare.
The knob is missing from the pitch pot in the picture, i probably used it for something else.
Sound samples :