Digital Magic 8 Ball (re-Mix)

I loved the work by ELECTRONOOBS (https://electronoobs.io/tutorial/72) so much I re-mixed the ball and eliminated a bunch of parts to bring the BOM down.
I replaced the power switch with a Metal Ball Tilt Switch SW-520D (the current draw from the OLED and Arduino might be just a tad above its rated limit, but hey you only live once).
I did not put in a boost converter since the Arduino 5V variant runs on the 18650 directly(Might not be the best way. but it works lol).

I also used an Arduino pro mini with an ATmega328 that I programmed using the ISP (getting rid of the boot loader makes it boot faster and uses less memory).

The top and bottom half screw together.