Laurel Pollard posted a quilted book bag she made using WaterColorBot with fabric markers to draw designs made using Beetleblocks. Her technique:

iron freezer paper to back of fabric to stablize, tape down. Use Sharpie ‘Stained’ fabric markers.

@susanettenheim @ericrosenbizzle @EMSL use #watercolorbot same as with paper. Fabric markers fit a bit snug. pic.twitter.com/cASsbgVPgU

— Laurel Pollard (@MrsPollardprime) August 15, 2016