Jamming 6 Pack

This is a modification of the original project case. The batteries are re-oriented to add two more and increase the voltage.

This still requires AAA contact terminals and a switch.Additionally, you will need a screw to hold the circuit board cavity closed. I use a heat-set M2 brass threaded insert with a flat head screw.

Alternatively, you can fill the threaded insert's hole with hot glue and use any screw you want. or just hot glue it closed if you're feeling really confident!