Trains, compost tumblers, automated clay pigeon throwers and other projects will be the spectacle at Brigham Young University-Idaho on Dec. 15, as 13 teams of mechanical engineering students present projects they've been developing since September.

Alan Dutson, associate dean for the College of Physical Science and Engineering, said the event, held every semester, usually draws hundreds. The open house will last from 2-5 p.m. in the northeast lobby of the Mark Austin Technical and Engineering Building. Members of the community and local media are invited to attend.

"People at the open house get to see the creative designs and solutions of BYU-Idaho students," Dutson said.