This magnetic version fo Newton's cradle is no lomnger in production, but somtimes found on ebay:
From eBay: Search NOW: Magnetic Newon's Cradle
Here are some nice versions of the classic Newton's Cradle
and here is a nice Magnetic Replusion Demonstration
Magnetic Newton's Cradle: the famous collision demonstration reimagined with opposing magnets as the pendulum weights- shown here in two modes of operation. Initially the collision pattern looks similar to the traditional colliding spheres version but quickly goes chaotic- the magnetic field of each weight interacts with all the other magnets simultaneously making the system nonlinear. A 1990s desk toy by Fascinations- sadly no longer in production.
This industrial grade museum quality device available here:
From Etsy: BUY NOW: Giant Newton's Cradle
Regular sized Newton's cradles availabe here:
From Amazon: BUY NOW: Newton's Cradle
Newton's Cradle: industrial model made with galvanized aircraft cable, aircraft aluminum for the frame, and 1.5 inch one-half pound nickel plated chrome steel spheres. (0.23 kg and 3.8cm in diameter each) The classic demonstration that shows the curious behavior due to conservation of both momentum and kinetic energy. Swipe to see comparison to standard version.
Get one here:
From Amazon: BUY NOW LED Newton's Cradle
From eBay: BUY NOW LED Newton's Cradle
Modern LED Newton's Cradle: the classic physics demonstration of conservation of momentum and energy cleverly updated with LEDs and light sensors that synchronize color with changes in motion.