Motion-Sensing Spider

Engineer a creepy crawly prank that's equal parts scary and silly! With this hands-on kit, kids build and customize their very own spider, learning the mechanics behind springs, gears, and motion sensors. Once assembled, the spider lurks above until the motion sensor is triggered—then it drops down for the ultimate jump scare. Perfect for pranks, classroom STEM activities, or just keeping siblings on their toes, this kit combines engineering smarts with endless laughs. What Makes It Extra Fun Build-it-yourself spider with springs, gears, and a retracting mechanism Add an electronic motion sensor for spooky surprise drops Encourages STEM skills: problem-solving, engineering, and creativity Great for pranks, Halloween displays, or year-round creepy fun Watch it in action!

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