Non Toxic Dye Pens For Drawing On Suede Baby Shoes?

[KateB]

I've just begun sewing baby shoes and moccasins and I would like to draw/ paint designs on the leather and suede. I'm going to be using a special veg tanned leather that uses only vegetable sources and low impact dyes, so I don't want to compromise the low toxicity by using an "unideal" medium for painting the designs. I'm mainly interested in black, brown and pink. I see that Angelus makes a suede dye that can be applied with refillable markers.

I have 2 concerns though. 1) is this the least toxic option, since babies put their shoes in their mouths and 2) I've read that the black dye from Angelus appears purple.

Would love your input!

Thank you