Sponging. Sponging utilizes a sea sponge to apply two to three accent colors to a base coat for casual to elegant looks. Sponging can create a soft, mottled look on anything from walls to trim and even furniture. My wife Joan and I began our marriage with little money and an old mobile home. Get the best home improvement DIY interior ideas, home painting tips, wall painting ideas, home decor styles, and home renovation techniques at extremehowto.com!