For Monkey Day 2012 , '' USA Weekend '' published '' The 12 Stars of Monkey Day '' , a series of paintings by Millikin that were " in part inspired by the many pioneering space monkeys who rode into the stars on rockets , leading the way for human space flight . " In 2013 , Eric Millikin created a mail art series where he mailed Monkey Day cards to strangers , including Koko the sign-language gorilla and President Barack Obama . For Monkey Day 2014 , Millikin created a 3D monkey experience . Since 2016 , Millikin has created the '' Danger Beast '' series of street art portraits of endangered animals created out of endangered plants , including a portrait of Harambe the gorilla made from Venus flytraps
Harambe
Killing of Harambe
Monkey Day