Trying to buy all made in USA this year - - For 3 year old I got a "TAG lock-box" - expensive (about 80 bucks) but well-made and will be played with for years and years and then passed down to his sister, so thinking it's worth it. GreenToys for the little one...because really, the choices are pretty slim. Some Step2 sets are made in USA, as is the classic Big Wheel. Good luck!
You've got vendors from all over including K'Nex, Channel Craft, Patch Product Inc, Roy Toy, Stuffington, Maple Landmark... the list goes on! All 100% American made. There are even rattles (baby) that you were asking for!