Old alarm clocks and many doorbells and telephones emit a signal due to the blows of “hammer” metal hemisphere of the bell.
If you are annoying it’s pretty sharp rattling, stick a bell in place of hitting it square of adhesive tape or medical adhesive tape device will beep “whisper”.
.
Recommend to read
LIKE CLOCKWORK
Known tip to RUB the screw with soap, to facilitate its mounting in the wooden piece. If it is plastic, for example, sealing the dowel into the hole — then the screw for the same...
DREAM CAR
If Attesi-TX was able to charm you in the same way as it did me in its time, then I think I can quite help you make this very simple, compact and ultimately cheap and affordable...