Capturing and Collecting Animals

There are many fun animals in Minecraft and I’m sure there’ll be more in the future. It’d be great to have a new block / tool that could capture passive mobs, maybe made out of a couple shulker shells and a minecart. With this device you could snag that horse you really like, or bring back a mooshroom for your zoo at home, or whip out a strider in a pinch. It would only be able to hold one mob at a time so if one was out collecting theyed need several, it’d be similar to a poke ball. I think most people would really enjoy this mechanic. Thanks for the consideration!