Rolls Royce created a Lego block working replica of one of their jet engines. The Lego jet engine is 4’9” long and 6’5” feet wide, weighing 676 lbs. It is a replica of the Rolls Royce Trent 1000, which is used in the Boeing 787 Dreamliner aircraft. According to Rolls Royce, it is the world’s first all Lego working jet engine. The Lego engine took four people eight weeks to build and complete, with over 152,000 Lego pieces.