Coat Hanger and Water Bottle Pulse Motor
This shows how to make a simple electric pulse motor using a coat hanger and an empty plastic water bottle. No tools are needed to build this simple kitchen counter top motor. It runs on one AA battery.
Here is one place where you can find the magnetic proximity switch:
This is a ‘normally open’ type that closes when a magnet is near. There are many other places to find this switch. They are used in security systems and I like them because they come with a mounting bracket and wires. Ebay is another source.