Bully Sticks are similar to rawhide chewies, but they don't break off into big hunks like the rawhide does so there are less chances of your baby getting choked, or it causing other internal problems with him.
There is some good info in this thread about the dangers of rawhide, etc.
http://www.yorkietalk.com/forums/fun...ides-safe.html
As for the baby toys, I think SOME of them are OK. Mine play with them. I just keep a close eye on them and check them for damage each night when I put them away. I wouldn't allow them to play with anything flimsy or that has small parts, etc.