Michigan Crusades For Kids (C4K)Created in 2012, Michigan Crusades for Kids is a federally registered nonprofit charity that provides local children affected by life-threatening illnesses with adventure-based activities and special events. Police, fire and military members are the core of the Michigan Crusades for Kids team. We’ve created fun events! Helicopter rides, Ferrari race track events, skydiving, fire truck rides, bomb squad exhibitions, hospital parties and visits.