Reusing dried acrylic paint depends on the desired outcome. To use the paint for brushing on canvas, reconstitute it by heating it and pour it into a new container. For a painting technique similar to oil paintings, consider using water-based inks instead of acrylics. They have a thicker consistency that does not dry as quickly when applied with a brush. Additionally, certain pen nib techniques, such as droplet application, work well by adding large amounts of ink from a bottle directly onto paper, similar to the process of creating stained glass.