For the first two, I'm guessing that they wouldn't be recommended - or at least marketed and sold - to kids. For the last one, I'd guess that it's okay because the stick is the handle and not a small piece inside that can easily be swallowed.

Don't get me wrong, I've always thought it was weird that Kinder eggs were hard to find here (you can get them in some specialty shops, at least in my area), but really, some of those toys inside are pretty damn small and intricate. I certainly thought they were cool when I was a kid travelling to Italy, though!