A simple "do not disturb" sign, couldn't find one that I liked so I made one. Made it on Tinkercad very quickly, not perfect but it works :)

Including a “do not distrub” variant cause I didn't notice the mispell until I printed it, when I noticed it I thought it was funny so here it is :D

Also as you can see in the photo the text is pretty tall, in the files I uploaded I fixed the problem and now it's much shorter. I reduced the text (and border) height from 3.5mm to 1.5mm so it should look much nicer.