Similar ferrofluid devices available here:
From Etsy: BUY NOW Ferrofluid Sculptures
Ferrofluid Magnetic Tree Sculpture: the 'Nano Tree' by Concept Zero designs using gold colored ferrofluid which can be manipulated with a handheld magnet. The spiky structure is due to the balance between the forces from the focused magnetic fields (from a neodymium magnet in the base connected to an iron rich bolt) and the forces from liquid surface tension on the colloidal ferromagnetic liquid.
Available on Etsy: BUY NOW Gold Ferrofluid Cell
Golden Ferrofluid: colloidal ferromagnetic liquid in a specially prepared water-alcohol suspension. Curious behavior results from the interplay between magnetic force and surface tension. I'm still investigating the gold coloring and the specific makeup of the clear suspension fluid- both trade secrets it seems. The gold color appears to be a thin coating at the boundary between the ferrofluid and the suspension liquid.
Ferrofluid display cells available in a variety of colors:
From Amazon: BUY NOW RIZE Ferrofluid Interactive Scuplture
RIZE Spinning Ferrofluid Display: by @mtrdesigns - a colloidal ferromagnetic liquid forms a spiked helix around the threads of a steel bolt in this kinetic sculpture. The bolt contains ferromagnetic iron which channels the field from the strong neodymium magnet in the base and focuses it into the spiral configuration. The curious spiking behavior results from the interplay between magnetic force and surface tension between the liquids.?Special thanks to Matt of MTR Designs studio for this beautiful interactive display.
Available on Etsy: BUY NOW Motion Ferrofluid Sculpture
Colored Ferrofluid Display Cells: spectacular metallic blue, gold, and black display cells by czferro - colloidal ferromagnetic liquids in a specially prepared water-alcohol suspension. Curious behavior results from the interplay between magnetic force and surface tension. The gold and blue coloring appears to be from a thin coating at the boundary between the ferrofluid and the suspension liquid. Still exploring the details of the coloring and the specific makeup of the clear suspension fluid - both trade secrets it seems.
Check out the Etsy page of CZFerro: imaginative and quality ferrofluid display cells
On Etsy: BUY NOW Magnetic Fluid Sculptures
spYke Ferrofluid Display Cell: another spectacular display cell by czferro featuring a colloidal ferromagnetic liquid in a specially prepared water-alcohol suspension. The orange background highlights the curious spiking behavior of the black ferrofluid- a result of the interplay between magnetic force and surface tension between the liquids.
From Etsy: BUY NOW Ferrofluid Lava Lamp
Ferrofluid Interactive Lava Lamp: special ferrofluid infused wax allows manipulation of the blobs of “lava” with a weak magnet, adding an interactive element to the already mesmerizing physics of convective heat flow, Archimedes principle, and immiscible liquids. Love the atomic rocket theme on this updated version of the 1960s classic physics toy.
More here: Ferrofluid Interactive Sculptures