Right now, the Playz V8 Combustion Engine Model Kit is on sale at Amazon for just $70. You can save 30% on this highly-rated ...

Now $69, down 30 percent off its usual $100 sticker price, this miniature engine kit seems to suggest otherwise. Playz V8 Combustion Engine STEM Kit $70 (was $100) at Amazon Get It!

For motorcycle enthusiasts, an appropriate choice is this Retrol V-Twin motorcycle engine kit, which sells for $899.99. This kit is a 1/5 scale model of the Harley-Davidson Knucklehead motorcycle ...

Playz V8 Combustion Engine STEM Kit $60 (was $100) at Walmart Get It! Made specifically for educational purposes, this Dr. STEM kit is divided into over 250 pieces, along with visual assembly ...