And here we thought that colour-changing ferrofluid was as unique as that magical magnetic liquid could get. But our eyes have been opened to a whole new world of possibilities now that ThinkGeek is stocking a bottle of ferrofluid that looks like it's filled with liquid gold, ready to morph, spike, and dance at your command.
At $US60 for just 100mL of the golden goo it's certainly more expensive than your regular old black ferrofluid, but just look at this stuff. Its golden shimmer makes it seem like something originating from the deepest corners of space, but even if it were some kind of alien life, rest assured that nothing could possibly escape a glass bottle. [ThinkGeek]