I applied in-person. The process took 3+ months. I interviewed at Clowns.com (Clowne, England) in Jan 2015
Interview
Hilarious, had to get in a tiny car. Very informal - wear what you want. Especially big shoes. Had to do a maths test. Honk your nose. Squirt water out of a flower and be good at face paint. Be happy all of the time. No matter what. Don't be a scary clown/