Craft subscription boxes make for cool educational gifts for kids. They are pretty useful among homeschooling kids. 

Good kids carft subscription boxes are really educational, and contain original projects than in other subscriptions, and have been vetted by educators and child development experts. Moreover, the subscription kits are developmentally appropriate and have reasosnable pricing. Finally, they should have easy ordering and canceling options.

The best craft subscription for preschoolers: Koala Crate (bright, fun projects, useful for developing good motor skills)

The best craft subscription for early elementary kids: Kiwi Crate (most original, cover science, art, and engineering projects)

The second best craft subscription for early elementary kids: Little Loving Hands (pricey, but it is all for charity)

The joint second best craft subscription for early elementary kids: Green Kid Crafts (plain projects)