Gecko Run Marble Run Starter Set

This color-sensing, color-changing robot is within a few bucks of its best-ever price and still arrives in time for the holidays. Buy Now at Amazon

Amazon is discounting a wide range of Thames & Kosmos STEM kits and science sets, with savings as high as 60% off. Expect deals across popular categories like engineering builds, robotics kits, chemistry sets, and hands-on physics projects, with several items marked as limited-time offers. We've pictured the Thames & Kosmos My Robotic Pet: Coding Chameleon STEM Building & Experiment Kit for $36 ($19 off). Shop Now at Amazon

It's $24 off list on this educational STEM kit designed to teach children about sustainable living and green energy through hands-on experimentation.

It's also the lowest price ever on Amazon. Buy Now at Amazon

This is around double at most other outlets. Buy Now at Amazon

That's a savings of $18 and the best deal we've seen on this comprehensive engine building kit, a great educational tool for enhancing mechanical understanding. Buy Now at Amazon

You can shop LEGO sets that are discounted by as much as 46% in this Walmart Holiday Sale, including Disney kits from $14, Formula 1 from $22, and Star Wars from $24. Some even come with a couple of bucks in Walmart Cash (eligible sets will be marked on the product pages). Shipping is free on all orders over $35 (pickup is also available on most items).  Shop Now at Walmart

That's a $29 low. Buy Now at Amazon

You'll find some of Amazon's most popular deals of the week in this sale section, where discounts as high as 63% apply (even though the banner only says 40%). Athletic clothing, hiking boots, weights, and winter coats are included for all your New Year excursions, as well as deals on toys and home essentials. Shop Now at Amazon

It's the best deal we've seen for a poultry shears. Doesn't get better than this. Such poultry shears go for prices from $20 to $66 elsewhere. Shipping is free on Amazon Haul orders of $25 or more. Shop Now at Amazon

If you've been thinking about adding a thermal imager to your DIY kit (or you just want to hunt down drafts, insulation gaps, and hot electrical spots), Amazon has a bunch of thermal imaging cameras on sale right now, with prices starting at $95. We've pictured the HF96 Thermal Camera with Laser Pointer and Intelligent Scene Detection for $165 ($55 off). Shop Now at Amazon

Save on these high-quality Japanese rice cookers, coffee makers, water boilers, and insulated mugs. We've pictured the Zojirushi NL-AAC18 10-Cup Micom Rice Cooker and Warmer for $198.58 (low by $26). Shop Now at Amazon