Are you kidding me? They're selling this "Ferrite"(ordinary iron), at their website for $250. Just get a glass of water, dump some ground iron in it and there you go. Seems to me like they're just using the fancy name to trick customers into buying it for a ridiculous price.

world of goo !

Good that they use white gloves so they don't get some magnetism on their hands...

#1 probably not water but yeah pretty cool marketing idea

There is ink that is magnetic, maybe that would work just as well.

it looks like computer generated graphics

it would be something you buy for loads of money, then play with for maybe 5 minutes, and never look at it again.

I'll have to buy some and give them to my simple and boring friends

I think you can just use some oil(so that the powder don't oxidate), transparent enought, and some iron nanopowder.. then you just buy some neodinium magnet. I'm not sure if every iron nanopowder is succetible to magnetism, but should be as long is 100% iron right?
Think could work this way?

That is ferrofluid, is not exactly Ferrite :
http://en.wikipedia.org/wiki/Ferrofluid

Ferrofluid can be used to build high vacuum rotary feedthrough

aaaand m bored after 5 mins!

this is the work of the devil

#1 amen brother
although you'd need to coat the iron with some polymer resin to protect it from corrosion or just use powdered stainless steel or you could put the iron powder in something that wouldn't cause any corrosion like umm.. kerosene
sodium is usually kept in kerosene for that same reason

Why not DIY, would make one hell of a present/project for kids. Materials are simple enough:
1. Glass bottle:

http://www.amazon.com/Glass-Vials-Dram-Pack-12/dp/B002JV6976/ref=sr_1_32?ie=UTF8&qid=1372111096&sr=8-32&keywords=glass+bottle

2. Some ferrofluid or ironfiling (should work, would be fun to experiment):

http://www.amazon.com/Ferrofluid-bottle-GREAT-SCIENCE-PROJECTS/dp/B00126P1NW/ref=sr_1_1?ie=UTF8&qid=1372112987&sr=8-1&keywords=ferrofluid

3. Some clear liquid that iron won't rust in. This means cooking oil or rubbing alcohol should do. Oil has higher density than rubbing alcohol so the ferrofluid should move slower in it. Also oil may lacks contrast with the iron and it looks like piss. Wiki has something about increasing the water density to simulate ferrofluid in zero gravity effects; sounds cool enough for me.

4. Some magnets if you're too lazy to just salvage some from old toy motors or speakers.

Simple assembly:
Put some ferrofluid or iron filing in a glass vial. Then tops off the vial with oil or rubbing alcohol. Tightly seal the vial. Attached the magnet to the vial and watch the effects.

This seems to be around $50 at most for like several vials of this wonder. The ferrofluid is the most expensive. $250 is way overprice for the cool looking fixtures.

Just found this, not very different ... except the fixture from the way it looks.

http://www.amazon.com/Educational-Innovations-Ferrofluid-Preform-Display/dp/B008MB1ROC/ref=pd_sbs_op_7