Tribune photo by Aaron Piper/ Franklin Stokes, 12, of Seymour installs a group of Legos built into an engine part on a model of a Lego model of the Cummins Inc. QSK-95 egnine, commonly called the Hedgehog, on Tuesday during a Summer Advantage Summer School program at Seymour Middle School. The replica was composed of 30,000 pieces weighing 128 pounds.