Use painters' tape, fabric paint, and lengths of unadorned canvas drop cloth or cushion covers to create summery striped tablecloths or seat cushions. To make them, lay the fabric on a flat work surface, and carefully apply painters' tape to create neat stripes, outlining the spaces you'd like to paint. You can make the stripes wide, narrow, or some combination of the two. Then mix fabric paint with paint extender in a two-to-one ratio, to give it a natural-looking translucence. Using a stenciling brush, gently tap paint between the tape strips. Layer on more paint as needed. Let the stripes dry, and remove the tape. Set the paint according to manufacturer's directions.
Canvas drop cloth, 5 3/4 by 8 3/4 feet, $10; homedepot.com.
Pillow covers, in Natural and Linen, from $49 each, by Sunbrella; restorationhardware.com.
Conserve large vase, $120, by Astier de Villatte; abchome.com.
Textile Color, in Scarlet Red, White, and Navy, and Colorless Extender, $2.52 for 2 1/4 oz., by Jacquard; and (similar) stencil brush, 1 inch, $4.89; dickblick.com.