Looking for the best science toys on sale? You’re in the right spot. Whether you’re stocking up on gifts or trying a STEM crate for the first time, the KiwiCo Prime Deal is your ticket to seriously fun, hands-on learning — at a great price. This limited-time offer includes savings on both monthly subscriptions and one-time store purchases, so you can choose what fits your family best. From building your own walking robot to engineering a marble roller coaster to crafting your own wooden clock, there’s something for every curious kid (and kid-at-heart).