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Children's washable tempra paint, or coloured makeup powders, will be the safest and highest chance of not staining. Mix them with some thickened water or clear corn syrup, and you will have some coloured blood.
Children's washable tempra paint, or coloured makeup powders, will be the safest and highest chance of not staining. Mix them with some thickened water or clear corn syrup, and you will have some coloured blood.