A Pikachu one that can talk (Only Pika's xd) that was gifted to me as a child. It's medium sized. I'm surprised it still works. It's quite huggable~
I also had a Psyduck and Togepi, Not sure what happened to those. They were similar to the Pikachu one.
I'm also surprised he still works. Do the motors still run, or are they stuck and struggling? Do his cheeks still light up, or have the LEDs gone kaput? (I'm sorry for asking so many questions) If I remember right, there was also a Mew in that set. Her eyes and tail move. (I think of some Mew as female, despite the fact that it's both genderless and the original seiyuu is a man. He can really do a high pitch. I am just... stunned and genuinely impressed.)
Anyways... for my favorite plush that I own, I have a talking Keromatsu (Froakie) plush. I got him off Amazon for 20 bucks. I didn't think he'd be NIB or still work at that price.