For parents concerned about getting their kids too many toys, the Amazon STEM Club is a good way to at least make sure that the toys children get are positive for their education. The subscription service sends toys once a month, and each of the toys sent are curated to stimulate some aspect of STEM.
There are three different Amazon STEM Club subscription packages: one for kids ages three to four, one for ages five to seven, and a third for ages eight to thirteen. Since the toys come monthly, Amazon's editors work to spread out the different areas of STEM as much as possible. Examples have included things like programmable robots, crystal kits, chemistry sets and arithmetic toys.