by RyeMAC3, published
This is my take on the "Zorg Door Bomb" from the movie "The Fifth Element". I made it into a clock with a countdown timer that has to be deactivated with a little PCB that slides in the top, just like in the movie.
This build not only involves etching your own copper PCB, but it also involves a custom made PCB that you'll need to have fabbed from your boardhouse of choice. You'll need to know how Arduino works, as well as how to bootload an SMD ATmega328, upload sketches with FTDI, etc.
Sources files for the electronics are on my website: http://kevinrye.net/source/
If electronics isn't your thing, you can just make it as a desk prop, but you'll still need to get your hands on Adafruit's I2C 7-Segment Display: https://www.adafruit.com/products/878 as well 4 x 5mm red LEDs. They are common, run-of-the-mill red LEDs.
I also included my original SketchUp file if you need to make any tweaks to the model.
