The anatomy of a teddy bear
Let your bear growl! There are different kinds of voices, from cheap growlers to more expensive musical boxes. Growlers come in different shapes and sizes, just like the musical boxes which ussually have a key to wind.
It is wise to put the voice in some tights first, so there is no granules or fillings getting into the voice, which would stop working. The body of the bear should always be large enough to accommodate the voice. The body must be properly filled up solidly, so you can't feel the voice from the outside.