Things You'll Need
Used motor from sewing machine or other small motor
3 bicycle rims
3 carriage bolts
Metal or wood poles
No-stretch fishing line
Lightweight witch prop
Fishing swivel eye
A realistic Halloween display isn't complete without a resident witch, especially if you can make her fly. Creating an animated flying prop to add to your display is a little bit of technological genius that almost anyone with some minor mechanical skills can garner. A simple motor and wheel mechanism can turn your favorite witch prop from boring to sky high, and your Halloween display will be the talk of the neighborhood.
Design a loop course for the witch to fly through your display where the area is clear of obstructions and you can set up pole mounts for the guide wire.
Set the motor on a length of 2-by-4 lumber. Drill a hole where the arm of the motor will extend down with enough clearance to allow the arm to spin clearly.
Mount the motor to the 2-by-4 with plumbers strapping by bending it around the motor and 2-by-4 and screwing into place. Make sure it is tightly strapped so the motor does not wobble during use. Attach the pulley wheel to the bottom of the motor arm below the 2-by-4. Extend the bicycle chain on the gear to its full tension and insert the gear into the chain. Mark the center hole of the gear on the 2-by-4.
Drill a hole for the carriage bolt. Insert the bolt through the 2-by-4, and then mount one of the bicycle rims on the bolt. Below the rim, mount the gear with the chain tensioned on the gear. The chain will drive the gear and turn the bicycle rim, which will in turn move the guide wire with the witch to make her fly.
Cut the remaining end of the 2-by-4 off. Cut 2 pieces of the extra 2-by-4 to mount the remaining 2 bicycle rims with the carriage bolts as you did the first one. Mount these to two of the poles with the plumbers strapping and screws, then place in the ground in the locations you plotted out.
Secure the third pole into place and mount the motor assembly onto the pole. Stretch your fishing line tightly around the three bicycle rims. Attach the witch to the line with the fishing swivel eye. Turn the motor on, watch the witch fly around the course, and make any necessary adjustments.