Since I clearly have nothing better to do, I did some homebrewing. Enjoy!

Spoiler: A new familiar?
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Miniature Rag Doll
Tiny construct, neutral good
Armour Class 11
Hit Points 2 (1d4)
Speed 20 ft.
STR DEX CON INT WIS CHA
4 (-3) 12 (+1) 10 (+0) 3 (-4) 5 (-3) 16 (+3)
Skills Persuasion +5, Stealth +5
Damage Immunity Poison, Bludgeoning from nonmagical weapons
Damage Vulnerability Fire
Senses darkvision 60ft., passive Perception 7
Languages -
Challenge 0 (10 XP)

False Appearance. While the rag doll remains motionless, it is indistinguishable from a stuffed toy.

Mimicry. The rag doll can mimic simple sounds it has heard, such as a person whispering, a baby crying, or an animal chittering. A creature that hears the sounds can tell they are imitations with a successful DC 10 Wisdom (Insight) check.

Actions
Headbutt. Melee Weapon Attack: +0 to hit, reach 5 ft., one target. Hit: 1 bludgeoning damage.