Quantity   Component name
1 × wooden box from the Range
1 × Arduino Nano
1 × DS3231 RTC Module Discrete Semiconductors / Diodes and Rectifiers
1 × Double Bubble Backpack from TinkerTroniks https://www.tindie.com/products/Serg/double-bubble-backpack-7-segment-8-digit-/
1 × Hot-melt glue :-D