I can't believe no one makes any cases for this. I bought a fire tv box remote case and cut the holes bigger and zip tied it to keep it snug. Works great. I also have a rechargeable remote that I cutout the bottom for charger and headphone access. I drop mine a lot so this hopefully will absorb the blows and also makes it easier to see. I don't hate the beautiful Nvidia green either.
It's on Amazon $10: Fintie Silicone Case for All-New Fire TV 4K / 2nd Gen Fire TV Stick Voice Remote, Compatible with Amazon Echo / Echo Dot Alexa Voice Remote - Honey Comb Series [Anti Slip] Shockproof Cover, Green-Glow
Here's a pic of mine: https://imgur.com/DTlSgAO
I really need to get my remote measured and release a 3D model of it so that we can 3D print some cases.