STEM For Tots - M&Ms: Magnets & Motion In this Mechanical Engineering adventure, participants step into the world of transportation and amusement park! Caution: rides design in progress using friction, spinning and magnets. The thrilling program is sure to get everyone moving. Activities include: Stop-It-Droid TM, Zipline Engineering Design, Roller Coaster Ride Design, Maglev Train, and more.