VELCRO Brand Industrial Strength Strips | Superior Holding Power on Smooth Surfaces, Black 4" x 2", 3 Pack (90977) - Walmart.com
Lumintrail Large Velcro Picture Hanging Strips, Damage Free Hanging Picture Hangers, No Tools Wall Hanging Strips for Living Spaces, 12 Black Adhesive Strip Pairs with Lumintrail Keychain Light - Amazon.com
Amazon.com: Command Small Picture Hanging Strips, Damage Free Hanging Picture Hangers, No Tools Wall Hanging Strips for Living Spaces, 36 White Adhesive Strip Pairs (72 Command Strips) : Industrial & Scientific