Thank you for smoking
I've spent the entire weekend listening to Ralph Ellison's Invisible Man. After 20+ hours of non-stop audio book listening to finish in time for the next seminar you too will begin to see strange things in abstract shapes. Take a look at the pictures, guess what they could represent and then mouse-over to see my interpretation.
Caution: After 100 shots on full power, the batteries coming out of a 580EX Speedlite flash will burn your fingers.