Amazon has the WowWee MiP Arcade Interactive Self-Balancing Robot, Play App-Enabled or Screenless Games with RC, Includes Tray & Basketball Accessories on sale for $29 with free shipping.
Best STEM Toy Deals, Robots / Smart Tech Toys on Sale
Amazon has the PlayMonster Science4you Music Factory on sale for $6.43 - 15% off at checkout = $5.47 with free shipping on $25+ or with Prime. Includes 14 sonic experiments, for ages 6 and up.
Amazon has the Thames & Kosmos Robotics: Smart Machines Super Sphere STEM Experiment Kit for $54.70 - 15% off coupon (clip coupon) = $46.49 with free shipping. Build and program a 9" robotic sphere, plus 6 other robot models.
Amazon with CIRO Education has the 305-Piece Educiro 3 in 1 Train Set for $14 - 15% off coupon (check "Save an extra" box) = $12 with free shipping on $25+ or with Prime.
Amazon has the Science4you Little Farmer Science Kit with 12 Eco-Experiments About Planting and Crops (Ages 4+) for $9.54 with free shipping on $25+ or with Prime. Includes 36-page, full color learning guide.
Amazon has the PlayMonster Science4you Chasing Rainbows STEM Set w/ 13 Experiments to Explore The World of Colors for $7.74 with free shipping on $25+ or with Prime.
Amazon has the Thames & Kosmos Yummy Rainbow Lip Balm Lab STEM Kit for $15 with free shipping on $25+ or with Prime. Good Easter basket gift!
Amazon has the PlayMonster Marbleocity Skate Park Building Kit for $24.80 with free shipping on $25+ or with Prime. The assembly instructions come in the form of a graphic novel. Designed to take kids (12 and up) three to five hours to build.
Amazon has the PlayMonster Science4you Green Science Kit for $8 with free shipping on $25+ or with Prime. Includes 15+ experiments.
Includes 12" clear plastic human body model, stand, 21 realistic vital organs, bones & muscles, forceps, tweezers, body part organizer mat, instruction sheet, and 24-page illustrated anatomy book.
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Modify machines with 4 included weights and 8 included rubber bands to explore effort, force, load, motion and distance. 63 pieces total.
Amazon has the Scientific Explorer Ultimate Spa'mazing Kit for $8.56 with free shipping on $25+ or with Prime. Includes 3 essential oils, citric acid, sea salt, baking soda, bentonite clay, spatula, pipette, eye mask, bottles with caps, and jars with caps.
Amazon has the Spicebox Science Lab Stem Kit on sale for $8.67 with free shipping on $25+ or with Prime. In addition, the Cool Chemistry Kit is on sale for $8.92.
eBay with Microsoft has the Kano Motion Sensor Kit on sale for $3.99 with free shipping. For ages 6+. Build an infrared sensor that detects distance and direction. Comes with step-by-step book, sensor, cable, sucker-pad, stickers, and free Kano app.
Today only. Target has the Smithsonian "Jelly Fish" Aquarium Science Kit for $12 with free in-store pickup or free shipping on $35+. Watch a simulated bloom of jellyfish “swim" in this 9" tall desktop aquarium.
Today only. Target has the National Geographic Epic Science Series Earth Science Kit for $12 with free in-store pickup or free shipping on $35+. Has everything needed to build a model volcano, grow a crystal, and includes 10 rock and mineral specimens.