Can I leave my puppy alone with toys to keep them active when I'm not home?

You can. It depends on the type of toy. Like I mentioned a while ago, if it has stuffing and things that they could inadvertently rip up and destroy while you're gone, they could ingest it which could result in an emergency surgery.

You want to avoid those. But ones that are pretty hardy and can keep them entertained, are certainly good toys for them to have to keep them occupied while you're gone.