Long story short, Broutman approached Green about creating the illustrations, which Green was happy to do. The book is called "Chicago Treasure" and will be released in 2018.
"I don't get paid to do the artwork on the books," Green said. "It all goes back to the Lighthouse."
Green said he slightly modified the artwork's format to fit the round shape of the clock faces. He's hoping the clocks do well.
"The idea is if they take off at those locations, they'll [Target] put them in more stores," Green said.