I got my eyes, recently retractable claws became a thing and I can vocalise like a cat too.
[To demonstrate Sadie makes herself purr, the vibrations causing an effect not too dissimilar to a phone on vibrate before she shifts to a hiss followed by a growl, although it lacks the depth of Sam's]
Audio
[To demonstrate Sadie makes herself purr, the vibrations causing an effect not too dissimilar to a phone on vibrate before she shifts to a hiss followed by a growl, although it lacks the depth of Sam's]