A homegrown simple case for the Flip32+ flight controller from Witespy. I have not tested it in flight yet, to ensure that the barometer doesn't get any undue wind or light, but the sensor is cleverly located on the bottom side of the board, so I have high hopes for success. This case does not hold the board solidly by itself. I usually stick controllers down with foam tape or similar, even when in a case like this. Over time, I will make improvements to hold it more solidly, but in the meantime, you could always drill some holes and screw it down by the corners if you need to.

I printed it in PLA, using .22 layers and 25% infill, but I suspect most any reasonable values will work well. No need for supports, unless your printer doesn't do bridges well.