Here's how I replaced the lamp at the end of my retractable extension cord reel with a female plug. It
only took a few minutes and a few simple tools.

Black to Brass
Green to Green
White to Silver

Visit my site for more details - http://www.rollingworkbench.com

Here's a link to the plug I used - http://goo.gl/qksqD3
Here's a better plug on Amazon - http://goo.gl/oIpofN
Here's a link to a great wire stripper - http://goo.gl/935kMH