So it's a #dailysketchext of a kind... I did this before this semester (when I had time to pull out my acrylics) and sketched this copy of a book cover onto a canvas bag. I love how quickly acrylic dries, and so when I'm in the mood to make a sketch-like painting I reach for my acrylics. They also can lay nice on fabrics like this, but I haven't really tested their durability...