This tutorial shows you how to make liquid chrome.
First open a new document with a white background. Make a new document and grab your pencil tool and draw a random shape. Make sure your foreground is set to black.
Goto Filter>Blur>Radial. Set the amount to 50 with Spin and Best selected.
Now goto Filter>Sketch>Chrome. Set the detail to 0 and smoothness to 10.
Final Result