Tillandsia usneoides aka Old Man's Whiskers
Related to bromeliads, Spanish Moss features long, cascading stems of silvery-green foliage.
Spanish Moss makes an excellent houseplant, thriving in light, humid environments such as bathrooms. Avoid direct sunlight, as it can scorch and dry out the leaves.
As an epiphyte (a plant that grows on another plant), it doesn't require soil to grow—simply attach it to a piece of wood or another frame, where it can naturally hang down.
Mist the plant occasionally or dip/soak in water to keep the leaves hydrated.