[kida] has a highly innovative set of 3D-printable, musical fidget toys that play classic video game tunes. Of course there’s the classic Super Mario ditty, but there’s loads more. How they work is ...

Fidget trading lets kids swap popular sensory toys and decide what feels valuable to them. Trading can teach kids about money, choices, and what they may have to give up to get something they want.

Fidget toys have come a long way from simple stress balls and spinners. These days, you’ll find everything from intricate sliders to complex mechanical puzzles designed to keep your hands busy. But ...