Fun with Electromagnetism

For a school Project I decided to have some fun with electromagnetism. First I took a Computer power supply, cut the ends off the wires, and then grouped the wires together. Then I drilled some holes for binding posts. Then I took some wire and wrapped it around an iron core. This effectively made an electromagnet.

Then I decided this wasn't good enough so I thought I would put it in a gun and call it the "Volt .45 Maggun."
I installed the switch in the trigger area so that you can turn off the "gun" with the "trigger"
And as a finishing touch I painted the power supply.