Quantity   Component name
1 × Arduino Uno
1 × 4 digit 7 segment display with I2C backpack from Adafruit
1 × Momentary pushbutton scrounged
2 × Travel size liquid container
1 × 6 LED array scrounged
3 × Green LED
1 × 4x AA battery pack
1 × Juice can
1 × Sparkfun box
1 × Duct tape