There are plenty of fancy Nixie clocks available on the market. The Nixie Tap adopts a more minimalist approach. It is a compact, elegant clock that you can power with any old phone charger or USB port. Since it has WiFi, the time gets synced with an NTP time server once the clock is connected.
You get walnut wood and anodized aluminum housing options to choose from. Simply tap on the housing to change display modes. Since the hardware and firmware are open, the Nixie Tap is ready for hacking.