Resilient, highly versatile Compressed Sponges Sheets are terrific for sponge painting and craft projects. Wet the sponge and watch it grow to full size!Compressed Sponges are great quality, highly resilient craft sponges that expand when wet. You can cut the compressed sponges into any shape or object. Craft sponges can be used for sponge painting on walls, making borders, designing t-shirts and more.