Former President Barack Obama’s presidential library is hocking pricey merch shaped like the unsightly Chicago tower — as the project’s architects revealed the former commander-in-chief himself was behind the “Death Star” design that’s been widely mocked since construction began. Ungainly lapel pins that “capture the silhouette” of the ungainly Obama Presidential Center are going for $30 in the online store. “The pin represents the intersection of bold design and global leadership,” the website reads, noting the proceeds go to the Obama Foundation “to inspire, empower and connect people to change their world.” The $30 pins were designed to resemble to the monolithic Presidential Center. shop.obama.org Each pin is “handcrafted from unfired paper clay,” and is an 1.6 inches tall by 1 inch wide — about as oversized as the center itself, which lords 225 feet over Chicago’s Jackson Park in a monolith of concrete and granite.…