I had so much fun making the Ghostbusters' Particle Thrower, I thought I'd add to their equipment. Here I have my attempt at a PKE Meter. I found great pics of a working replica that Mattel put out. The arms on this model can be raised and lowered as shown in my pics. It seems like a small detail, but it was important to me that I had the right number of yellow lights on each arm. It measures about 9-10" long and has around 330 pieces.