Quantity   Component name
1 × 55 gallon drum (with a lid is a LOT simpler)
1 × 30 gallon drum (no lid is simpler)
1 × Welder
1 × 3/4in steel strip door reinforcement.
1 × 2" Automotive exhaust pipe about 10in length, for blower nozzles
1 × 3" Automotive exhaust pipe about 8in length, for blower inlet
2 × 2x2ft AL sheet, about 1/16" thick Fan housing
1 × 2"x1/8" steel strip about 2ft length, for fan blades
1 × 1/3 to 1/2 hp Induction motor
1 × 4" steel circle Fan blade center
1 × Lawn mower blade balancer