Do make sure the toy mouse does not have bells and/or feathers attached to it (yes, I have seen them). Your feline might try to eat the small bells or get a nail stuck in it. He/she might also try to eat the feather, which likely won’t do much good.
Another type of toy, which is far more interactive, is anything soft on a piece of (preferably elastic) string.
This means you can drag the toy around the room, flick it back and forth and have all sorts of fun games with your furry friend. And if your cat gets tired of the toy itself, you can always use it the other way around and have them chase the string instead. I have yet to meet a cat who can resist a piece of string.
It’s important to supervise your cat at playtime. This, of course, is easy when you are spending time together, but it’s also easy to forget the toy is lying around. It’s best to tidy it away after playtime, to avoid your feline getting tangled up or, again, trying to eat any bells and other small parts.