Repurpose the classic Mason jar as a soap or lotion dispenser in your bathroom. 1. First, measure and mark the center of the jar's lid. 2. Using a 1/2" high-speed steel drill bit (about $10; local hardware store), drill a hole to fit the width of a soap dispenser pump. We used pumps from old lotion bottles. 3. Fill the jar with liquid soap, screw the lid back on, and insert the pump. You may need to trim the bottom of the pump to fit your jar.