A smock or outdated shirt. Yes, although markers and paints are washable, it’s simpler to thoroughly clean up for those who guard their garments and pores and skin by possessing them use an previous shirt or an art smock. (Ensure to take a look at #ten around the list!) https://artsuppliesonline.us/articles/the-magic-of-mixed-media-essential-supplies-for-innovative-art