The suitcase is sitting on top of a laptop which runs the software. The laptop is connected to an Arduino which is connected to some sensors. Here's the logical architecture of the project diymagicmirror.com/files/magic-mirror-logical.jpg
This installation was for a Hotel where the Magic Suitcase among other things, speaks the Weather Forecast to the Guests.
Step 1: The Case
A jigsaw was used for the oval cutout. A standard LCD mounting bracket was used to mount a 15" LCD monitor to the back of the case.
Step 2: Schematic and Magic Mirror Arduino Shield
You just need an Arduino and can wire the schematic using a breadboard.
If you require a more permanent installation than a breadboard, the Magic Mirror Arduino Shield can be used. The switches and sensors are wired to two standard cat5e cables (T568B wiring) that plug into the Shield. Referencing the manual diymagicmirror.com/files/building_the_sensor_hub.pdf for the Shield, it will tell you what color wire goes to what sensor.
There is a kit available from Seeedstudio which includes the Magic Mirror Shield, necessary components, Seeeduino (Arduino clone), and the Magic Mirror software www.seeedstudio.com/depot/diy-magic-mirror-p-606.html
Step 3: Mounting the Sensors and Switches
Yellow switch = Weather forecast
Green switch = Stock performance
Red switch = X10 on/off commands
Reed switch (magnetic) = Picasa slide show
Proximity Sensor (Maxbotix EV-1) - Plays videos when subject is within certain distances
LED - flashes when within proximity sensor ragne
Black switch - doorbell mode
Potentiometer - dynamically changes between 4 characters/modes (princess, pirate, Halloween, and insult)