Magnetic Thinking Putty is Silly Putty with a twist. Aside from exhibiting standard characteristics such as being able to be molded and stretched, this version can be magnetized. This means you can use a magnet to control the putty, creating the cool effect seen in the image. It reminds us of Spider-Man's nemesis Venom preparing to snare its next victim.
This is possible because there are millions of tiny magnets embedded in the material, giving this blob its magnetic properties.
Online store Vat19 currently lists the product as out of stock. The same product can also be found on Firebox, which stocks a variety of other Thinking Putty products, some of which change colors according to temperature, while others glow in the dark.
Unfortunately, the magnetic version, found on Vat19, is on preorder only. Register your interest with one of the stores if you are keen on getting this.