An animated digital clock, made from a Noritake GU311 Vacuum Fluorescent Display.
Not a lot to the circuit, just a micro (the mythical attiny4313), a crystal, some caps…
…and a 2x10 female IDC header to piggyback on the much larger display board. There is a separate power connector which powers both the VFD and the clock driver. I'll never do a PCB for this one because I only have 5 of these displays and no prospects to find any more, but if I did make one, it would be super easy.
The circuit assembly is mounted in the case.
The assembled clock in action: