Costco Sale – Solarium Indoor / Outdoor Decorative Pillow 2-Pack $9.99 by Rhonda July 21, 2020 *UPDATE* 5/27/20. Brighten up your room with these bright, colorful pillows. Select Costco locations have the Solarium Indoor / Outdoor Decorative Pillow 2-Pack on sale for $9.99.(after instant savings), now through June … 0 FacebookTwitterPinterestEmail