Amazon has the WowWee Power Treads 70+ Piece All-Surface Vehicle Extreme Takeover Deluxe Pack (Amazon Exclusive) for $12 with free shipping on $25+ or with Prime. Includes two All-Surface Vehicles that flip and roll.
Best STEM Toy Deals, Robots / Smart Tech Toys on Sale
Amazon has the PicassoTiles 3-in-1 Solar Powered Dinosaur Robot STEM Kit for $20 - 50% off coupon (clip coupon) = $10 with free shipping on $25+ or with Prime.
Walmart has the Discovery #Mindblown Action Circuitry Electronic Experiment STEM Set on sale for $19 with free shipping with Walmart+ (free 30-day trial), $6 shipping, or free shipping on $35+. for ages 8 and up.
Amazon has the 170-Piece Learning Resources Geometric Shapes Building Set for $20 with free shipping on $25+ or with Prime. Includes 90 sticks in 3 sizes, 32 curves, and 48 connectors.
Amazon has the Educational Insights Design & Drill Bolt Buddies Tractor Take Apart Toy with Screwdriver Tool for $6.59 with free shipping on $25+ or with Prime. Includes child-friendly screwdriver, 7 decorative bolts, 4 snap-together tractor pieces, Bolt Buddy Farmer & chicken figures, corn, and trailer.
Best Buy has the 820-Piece Hexbug Vex Robotics Off-Road Motorized Truck Building Set (406-4557) for $25 with free curbside pickup or free shipping for My Best Buy members (free to join).
Has an alternate dune buggy build, accurate steering, real-working suspension, and can be controlled via the VEX Pilot app.
Amazon has the 281-Piece Wise Block RC Off-Road Racer Building Set for $14 with free shipping on $25+ or with Prime. Requires 3 AAA batteries for the car and 2 AAA batteries for the remote control (not included).
Ends 4/30. Amazon with MATATALAB has the Matatalab VinciBot Scratch & Python Coding Robot for Kids 8-12 for $110 - 30% off coupon (check "Apply coupon" box) = $77 with free shipping.
Amazon has the Smartivity Angle Drag Race STEM Learning Construction Kit Toy for $16 with free shipping on $25+ or with Prime. Walmart has it for the same price. Teaches basic physics concepts including gravity, momentum, and angle of deflection.
Amazon has the Elenco Teach Tech “Zivko The Robot” Interactive A/I Capable Robot with Infrared Sensor for $26 with free shipping. Good for kids 10+.
Amazon has the NATIONAL GEOGRAPHIC Butterfly Growing Kit for $12 with free shipping on $25+ or with Prime. Includes voucher for five live caterpillars ($10.95 shipping & handling not included). Fun Easter present!
Amazon has the K'NEX Education STEM Explorations: Roller Coaster Building Set on sale for $29 with free shipping. 546 parts, includes battery-powered motor. Requires two AA batteries (not included).
Home.woot has the Educational Insights GeoSafari Jr. My FIrst Science Kit Interactive Science Set for $11 with free shipping for Amazon Prime members or $6 shipping.