A variety of iPhone X, iPhone 8 Plus and iPhone 8 cases by Anker are currently on sale at Amazon for as low as $2.99 when you enter the appropriate promo code at checkout. For example, the Karapax Breeze case for iPhone X drops to only $2.99 when you enter code 9D16D115 during checkout. These cases previously sold anywhere from $8 to $17.
iPhone 8 Plus
Add some protection to your iPhone X or iPhone 8 with an Anker case from $3