Police officers arrested an MIT student at gunpoint this morning when they thought she was carrying a bomb into Logan International Airport, The Boston Globe reported.

The student, 19-year-old Star Simpson, walked into the airport at 8 a.m. with a circuit board affixed to the front of her sweatshirt. The circuit board displayed green LED lights and trailed wires running to a 9-volt battery. When an airport employee asked her about it, she did not respond, the Globe said. Police officers wielding machine guns quickly surrounded her. They determined that her prop was harmless, but arrested her for possessing a hoax device and for disturbing the peace.

The back of Ms. Simpson’s sweatshirt said, in gold handwritten letters, “socket to me” and “Course VI,” the nickname for the program in electrical engineering and computer science at MIT, the Globe reported. She told the police that her garment was an art project.

“I’m an inventor, artist, engineer, and student,” Ms. Simpson says on her MIT Web site. “I love to build things, and I love crazy ideas.”

Law-enforcement authorities weren’t too crazy about her latest idea. “I’m shocked and appalled that somebody would wear this type of device to an airport,” Maj. Scott Pare of the Massachusetts State Police told the Globe. “Thankfully because she followed our instructions,” he said, “she ended up in our cell instead of a morgue.” —Sara Lipka