Plastic Superhero Charms

Someone gave me these because I collected Kid Robot toys, I still am not sure what you’re supposed to do with these. Maybe you do?

Twonie in second pic for scale.

Definitely not safe for kids who don’t know what’s going on and will eat anything. What age is that? 7 and under? I dunno but don’t give these to a small kid, definitely a choking hazard.