Ever since I was 14, I have been manipulating my vocal chords for fun to sound like an 80+ year-old lady, a super deep-voiced guy or robot by inhale-talking (not like an asthmatic old man, mind you), and release trapped air in my cheeks to quack and talk like male and female mallard ducks.
I also can sound like a rough-voiced beach hippie dude, a raspy old man (akin to the grandpa in the Simpsons, but less peppy), babble like a baby, giggle and talk like a little kid, shout like a gruff-voiced guy (excited over football or something), sound like various animals, a teenage girl, a young adult lady, a nasally forward-voiced lady, and others.
I can sing in alto-soprano range, with experience in middle school plays and several high school choir concerts, most of which I had 1 - 2 solo parts in. I learned how to vibrato watching an opera singer on TV when I was 5 years old. My vibrato is described as strong and decent, especially in medium to slow songs, and strongest towards the end of a drawn out line. It is possible to sing at home, but may be more ideal outside the home. I live near a couple of auditoriums I could borrow (a huge high school auditorium with superb audio and a small library auditorium with high cieling echo problems).
My equipment: I have a $100+ Blue microphone that picks up everything, a gaming headset with a decent mic, and a laptop with a pre-installed basic voice recording tool. I do not have a "dead kitten" or the like, but I do have two sweet and funny cats. Speaking of which, I can purr at length.
Things I refuse to do: I don't do flirty, sexual, or other inappropriate or offensive lines. I can yell a little, but I can't scream, or the neighbors will complain or check on us. And I don't cuss/curse.