Just watched Toy Story 5 and, without going into spoilers, there is a blink and you'll miss it scene where a parent is reading aloud to their kid and, while we don't see the title of the book, it's pretty clear from the dialogue that the book the parent is reading is The Velveteen Rabbit.
Because the Velveteen Rabbit is essentially 1920s Toy Story. It's a kids book about toys that come to life when their humans aren't around, where the central plot is about the main character (a toy rabbit) learning what it means to become 'real' in a child's imagination, and how it isn't something that happens just to the newest most high tech toys, but rather to the ones that the kid builds the most attachment to.
“Real isn't how you are made,' said the Skin Horse. 'It's a thing that happens to you. When a child loves you for a long, long time, not just to play with, but REALLY loves you, then you become Real.'
'Does it hurt?' asked the Rabbit.
'Sometimes,' said the Skin Horse, for he was always truthful. 'When you are Real you don't mind being hurt.'
'Does it happen all at once, like being wound up,' he asked, 'or bit by bit?'
'It doesn't happen all at once,' said the Skin Horse. 'You become. It takes a long time. That's why it doesn't happen often to people who break easily, or have sharp edges, or who have to be carefully kept. Generally, by the time you are Real, most of your hair has been loved off, and your eyes drop out and you get loose in the joints and very shabby. But these things don't matter at all, because once you are Real you can't be ugly, except to people who don't understand.”
Just thought that was a really nice reference.