tying a ziptie around your penis, losing circulation and turning it purple. You then proceed to dip your dong into lead lined paint as to infect it and finalize the purple color. you then also chop off half your shlong.
Customer: "Excuse me, where can I find thanosized shirts?"
Employee: "We have purple shirts over there" *points somewhere*
Customer: "Thank you, that does put a smile on my face"