Dyed DuPont crimp housings just arrived. These are white housings sent to a (clothing) button dye factory and color matched to our shrink tube samples. They look way better than I expected, and will go on the next revision of the Bus Pirate 5 aux cable (and some other stuff).
We dyed a bag in black too, despite black housings being ubiquitous. I was concerned the dyed parts would reflect light differently and an actual black housing would stick out and ruin the effect. These will go to assembly shortly and end up in our Aliexpress shop soon.