I thought I would bring this thread up to the surface again in case someone could use the information...
Also, I have a picture to share of the doorbell I created for my crew, to give another idea on how to create one for your own home.
Heck, I could even make you some if you want!

Anyway, here is our doorbell:

This is the toe portion of a sock with a crocheted top. (To match my kitchen, of course!)

I have craft bells of two different sizes inside. It really works well, doesn't scratch up the surface and it's loud enough to be heard in other rooms!