The silliest little #Python project that brought me joy recently was using this Adafruit Playground Express that I got for free at some PyCon to make a little ambient light for my keyboard at my desk. It dims automatically with its built-in light sensor so during sunny days it’s completely off and in complete darkness it’s bright enough to be able to see keys on a black keyboard.
It sits invisibly taped beneath the upper desktop so it illuminates the keyboard below. Needs less than 1W of power.