Amazon · Aug 5, 2026
$25 $50
free shipping w/ Prime
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Amazon offers the Thames & Kosmos Hydraulic Boxing Bots STEM Experiment Kit for $24.93, its best-ever price. It's also an $11 low. Shipping is free for Prime members. Buy Now at Amazon
Features
- Upper and lower body move independently for dodging, jabbing, and punching
- Includes a scoreboard for head-to-head robot battles
Amazon · Aug 3, 2026
$27 $55
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Amazon offers the Thames & Kosmos Bionic Robotic Arm STEM Experiment Kit for $27.43, its best-ever price. Most merchants charge $55. Shipping is free. Buy Now at Amazon
Features
- Builds into a working robotic arm from nearly 300 pieces
- No motors or batteries required, uses joysticks and nylon cables to move
- Buttons open, close, and rotate the arm and claw
Amazon · 1 day ago
$25
free shipping w/ Prime
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Update: The price has changed to $24.85 since this was originally published.
Kids who like hands-on building projects can snap together the light-up panels into three different animal designs, making it a solid pick for a rainy-day activity or a gift that doesn't involve screens. Buy Now at Amazon
Features
- Build countless 3D creations with two primary components
- Use completed models as props for interactive play
- Illuminate displays with included string of LED lights
- Follow intuitive language-independent visual building instructions
- Access online step-by-step model building videos
Amazon · Sep 9, 2026
$11 $23
free shipping w/ Prime
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Good pick for family game night or classroom use, mixing vocabulary building with quick dice-rolling rounds that keep kids engaged without much setup; it's currently $12.29 (54%) off the $22.95 list price. Buy Now at Amazon
Features
- Race against a 2-minute timer to spell words
- Multiply scores by matching target ice cube dice
- Wildcard die substitutes any letter for strategic play
- Adjustable rules and modes for all skill levels
- Includes multiple bonus game modes for variety
Amazon · Sep 11, 2026
$13 $20
free shipping w/ Prime
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Update: The price has dropped to $12.52 since this was originally published.
Puzzle fans who like narrative-driven mystery games will get the most out of this hotel-set adventure, and at $12.53 it's $7.46 off the $20 list price. Buy Now at Amazon
Features
- Solve mysteries by exploring and interacting with guests
- Combine items and find clues to progress gameplay
- Experience non-linear branching narratives with multiple endings
- Enjoy five hours of unique, replayable story content
- Immersive adventure gameplay modeled after classic PC games