I have small children. I figure, for each child, I go through about 4 remotes per quarter. this was my solution to the problem. hope it helps you as well.

printed at .2 with 6 walls and 15% infill. wanted it to double as a weapon for those impromptu child Battle Royals.

no supports.

with the tall plate, it is a total of 75mm thick to prevent it from sliding under the sofa. 40mm with the thin plate

takes M3 x 20 screws. might need to hit the holes with a drill bit

designed specifically for this roku remote (https://www.amazon.com/dp/B09Z6Q2MLC?ref=ppx_yo2ov_dt_b_product_details&th=1) though it should work with most modern roku remotes. my first attempt was a little short and i had to remove the bottom shortcut button for Disney plus. i have extended the opening and it is no longer an issue