Measure the designated area for the starched fabric application, and add a few inches to the length. Choose a fabric with a palette, texture or graphic that appeals to you and complements the existing decor. If it is a non-permanent application, you may want to create a whimsical design by choosing a wild pattern you would normally avoid.
Wash the wall thoroughly with warm, sudsy water and let it dry completely.
Pour the starch into the paint pan. Roll the roller through the starch to get an even coating on the roller brush.
Apply the starch in a workable panel-sized area, and hang the fabric panel in place. Smooth out air bubbles as you work. Leave an overhang at the top and the bottom.
Tack the fabric in place at the top using a few thumbtacks until the starch takes hold. Use the sponge to saturate the fabric evenly with more starch.
Repeat the hanging and starching process until the wall is complete. Remove the thumbtacks.
Let the wall dry completely. Trim away excess fabric at the top and bottom of the wall using a sharp utility knife.