You know about Newton's Cradle. Either you have seen it as an ... What better way to show this than to make a model of it. Oh, maybe you guessed it. The MythBusters preview shows them trying ...

You can see from this model, a higher spring constant (stiffer springs) can produce the Newton's cradle effect. There is another way, you can put a space between the masses before they collide.

Desk toys are perfect for when you don’t want to work. There’s a particularly old desk toy called the Newton’s cradle. If you don’t know the name, you’d still recognize the toy.