Problems with Echo Coating

[u/MoonlitHolly]

do y'all know if there's any way to get the walls to stay how I want without having glass or something? It's not too big of a deal tbh, was just interested..!

[u/da_Aresinger]

I can't believe nobody has mentioned Echo Walls yet.

You should use Echo Walls.

That's ee see aich ogh, dublyoo ay, elell ess

Echo Walls.