The patterns are made using nontoxic, 100% safe fabric ink that reacts to your breath. So you control the effect! It simulates the animation of the inkblot amazingly. See the details.
Fear not, you won't be getting a big random blob in the center of the mask like you can see in others' attempts. I offer 5 versions — for those of you who might prefer a different design.
Three years ago I started making these (check my Ebay feedback) and literally thousands of customers, websites and magazines around the world are enjoying them now. Read the reviews.