Silent Kazoo?

Quick background, I had my thyroid removed in 2021 and that surgery triggered muscle tension dysphonia . Since then I have also been diagnosed with asthma and the steroid inhaler has worsened it on top of the fact that psychologically it has also gotten worse since im always concerned about how my voice will come out.

A couple months ago my son got a little plastic kazoo and while I was testing it out I noticed that it felt really good on my vocal chords. But of course he took it and lost or broke it or who knows.

Is there such a thing as a silent kazoo or something similar? Something that won't annoy all the people in my house?