This is a top view of the HS photography rig. The whole thing is mounted on a piece of melamine board to keep it organized.
most of the components are held down on the board with Velcro.
The Arduino board is on the top left. The breadboard with my custom circuits is on the left.
There is an old project prototyping kit in the middle. This cat has a number of switches, LEDs, and various other components on it. It also has power available at 1.5, 3, 4.5, 6, 7.5, or 9 volts. I use the 4.5 volt supply to power my LED flashlights.