It can follow smoke, cherry & incendiary
Residential ... addition to testing your smoke alarm, follow these fire safety tips:  
Install alarms... [DOC] [TLE] Explosives & Fireworks Features  Explosives & Fireworks ... [PAR] This video tutorial will show you how to make a smoke grenade with ... pong, 
here's the perfect solution for those left over ping pong balls... a cherry bomb.