A must for any arts and crafts and DIY project. Whether your paint project is a large wall or a small craft project, our foam sponge brushes apply material smoothly. A Sponge Brush for More Than Just Paint. Designed for all types of media, our 2” bush surface spreads paint, stain, varnish, chalk, glue and much more, quickly and smoothly. Great for watercolor and acrylic painting, pottery, mod podge, DIY projects, and classroom arts and crafts. For a Smoother Look. Our foam brushes have great absorption meaning fewer drips. Sponge paint brushes do not show the strokes, so the look and feel of the project will be nice and smooth. Foam Paint Brushes for a Quick and Easy Alternative to Traditional Bristle Brushes. With plenty to share and plenty to spare, our foam brushes offer a quick and easy alternative to traditional bristle brushes. With 20 in a pack, they are a great addition to your paint supplies.