Teddy & Snowball
This is a video of two of my cats, Teddy (the grey cat) teaching Snowball (the black one) to play with a new toy about a year ago. Snowball (she has a white round spot on her chest and stomach) was a feral.
She showed up in our garden and we fed her for 3-4 months before catching her in a trap to get her neutered.
Shortly after she was neutered, on a nasty rainy day, I put her bowl of food inside the door of our sunroom so that she had to come inside to get it.
After a few days I started to shut the door behind her which at first freaked her out. After a while she got used to it until another rainy day, I just kept her inside and the rest is history - she has been in ever since and is now the happy cat.
It is funny, Teddy has never played with it since and our other two cats don't play with it, but it has become Snowball's favorite toy.