Is it possible to wire a regular power supply cord to a sewing machine motor so I can use it for a Halloween prop?
As a general rule, in order to operate any motor salvaged from an appliance, you need to determine exactly how it is powered in the appliance. Salvage all of the related components and use them to power the motor. If you sufficiently understand how the motor is powered, there may be alternate ways to power the motor However, if you don't get all of the relevant information about the motor and how it is powered and controlled, it may be very difficult to safely use the motor or for anyone to tell you what needs to be done.