Parts:

  • repainted gun boxes  from Ebay,
  • misc electronic parts from garage sales
  • warning labels downloaded from google images
  • (3) Frightprops firecrackers
  • (2) 3/4 one way cylinders with 2 inch throw and mounting hardware and hook up kits
  • (1) 110ac solenoid 2 way
  • (1) union tee (so both boxes can share same air source)
  • Home Depot motion sensor to trigger