Mario Starduino is the Arduino GEMMA powered, NeoPixel lit 8-bit sparkling Super Mario Star Power-Up Christmas tree topper you've been wanting your wh...ole entire life!
I built this to encase the electronics and still allow USB cable access to reprogram and power the Arduino.
Check out the tutorial on Adafruit! https://learn.adafruit.com/starduino-neopixel-8-bit-mario-star-tree-topper