With a sea sponge, you can create all sorts of neat textures in watercolor painting. The sea sponges come in a variety of shapes, sizes and textures. You can twist, turn and squeeze them to get interesting textures.
1. Dampen the sponge in clear water first.
2. Dip or dab it into either leftover paint on your palette or even right into the paint well.
3. Dab and dot onto your watercolor paper.
Just remember not to make the same exact dab all the time, you don't want it to look repetitive and rubber stamped.
Using the sponge technique you can easily create leafed trees, textures for rocks, texture for sand, shrubbery. Dab on some paint, smooth or blot out some of the harsh edges with a clean damp sponge.
Be creative with sea sponges and watercolor paint!