Below are the things that i use.
Plain card blank, ive done an ATC also.
Versacolor 5 colour ink pad
A baby wipe
Now ive found out that you have to work pretty quickly. So taking pics whilst i was doing this has made it abit patchy. But i do have a few examples of 'swishing' on my blog.
I try to start with the darkest colour and choose where i want that. On the example below i used the dark green then the red .
The babywipe being wet is the thing that helps. It smudges the ink. This one was abit dry with stopping to take a picture. With each time i added the new ink i used a new finger bit of the baby wipe. This helps the ink not to mix together and turn brown/ dirty looking
I then added the lighter green and the orange. I kind of decide which way i want the ink to lie and 'swish' it from side to side. Hense me saying this is swishing hehe ;O)
The middle of the card was filled with the yellow.
When i have the basic colours on the card i go over it all quickly with the lightest colour. There was another coat of yellow ink that went on over this but i didnt take a photograph.
This was a textured card that i used so its abit bumpy. But i hope it gives an idea of swishing :O)