The Apple TV remote is a wonder of touchpad responsiveness, but it's not perfect. Chief among its flaws is a slim design that makes it tough to grip, and a symmetrical button arrangement that makes it hard to tell which end is up. These cases should help.
Made out of hard plastic, the Madman Designs MD-ATV4 ($20) is one of the thicker cases for your Apple TV remote and turns it into a much more substantial feeling clicker. A lanyard helps mark "down."
Fintie, which sells its share of device cases, has a slightly different take on an Apple TV remote cover with a grippy back that's anchored by its hexagonal tread design. Available in multiple colors for $9.