Making Swirl Brushes

Step 1
Open up a new image document in Photofiltre.

Step 2
Using the spray tool, spray the image 3 times in the same area.


Step 3
Now go to Filter >> Deform >> Twirl and make your settings as mine:


Step 4
Repeat the twirl step as much as you want until you are satisfied with your brush. I repeated mine like 8 times.