Artist Justin Gignac is an entrepreneurial genius. He is selling litter off of the street in little plastic bags for $50 each. So far he has sold 1,200 units, each one signed, dated and numbered. The idea started when Gignac was challenged by a co-worker. His aim was to prove the power of package design. He also produces “limited edition” runs. For example, Opening Day of Yankee Stadium and New Year’s Eve in Times Square.