The Vibraslap

[DC-93]

The vibraslap is a percussion instrument consisting of a piece of stiff wire (bent into a U-shape) connecting a wooden ball to a hollow box of wood with metal "teeth" inside. The percussionist holds the metal wire in one hand and strikes the ball (usually against the palm of their other hand). The box acts as a resonating body for a metal mechanism placed inside with a number of loosely fastened pins or rivets that vibrate and rattle against the box.^[1] The instrument is a modern version of the jawbone. Below is a great example of the vibraslap in use at the 1:21 mark.   

The better your system, the more realistic this percussion instrument will sound. 

 

 

 

[DC-93]

Found a mint copy of Low Spark. 
The best one to get has the pink circle and was mastered by Lee Hulko at Sterling.

You will find “LH” and “Sterling” stamped in the runout area.