Please don't go out and buy all of these toys without thinking about the child's interests. Not every toy is engaging to all children. Remember that novelty is also key. Play with it, then put it away in a place that the child cannot access it. If the child only sees it once a week, it's much more interesting, motivating, and engaging, which is key to eliciting repetitions.
Toys can be expensive.
Garage sales, Ebay , and clearance shelves are the first place I look. Finally, while age guides are great, don't let that stop you from utilizing the toy as long as you're going to be playing with the child. Many of the toys I've listed are meant for kids age 3-7 for safety reasons. As long as you are using the toy as a tool, you'll be with the child. Just make sure to count all of the little pieces beforehand and do not leave the child alone with it until the child is old enough.