We had a roomba mounted print head before.

The child had albinism. There are known cases in other African countries where people with albinism have been killed and their bodyparts been used for “witchcraft” purposes. (https://en.wikipedia.org/wiki/Persecution_of_people_with_albinism)

But it took a turn when prosecutors alleged that Smith sold her daughter to a traditional healer, who was interested in her eyes and fair complexion.

I think that implies that the child was literally butchered and its bodyparts sold.

Yes. It prints similar to an inkjet printer, but the inks are UV-curable. UV inks don’t need a special medium like coated inkjet paper, they stick to any surface. You can also layer multiple coats on top of each other to create reliefs (like resin printing, but with colours)

The technology could also be used to track the origins of illicit goods.

Does that mean ghost guns? That was my first thought when I heard of this tech.

This reads like an SCP that absorbs you into its fluff as soon as you touch it.

Set your slicer to only use one wall for the top layer. Edit: also, calibrate your extrusion. This looks like slight underextrusion to me.

Could this be oilskin? It looks a bit like polyester.