To those who wanted details about the bumper I built, here they are.  The PDF is the actual design and the pictures give a pretty good overview of how it goes together.

If your making one, my measurements aren't real accurate so measure for yourself!

Design:
http://members.accessbee.com/heinlein/bumperdesign.pdf

Pictures:
http://members.accessbee.com/heinlein/bumper01.jpg
http://members.accessbee.com/heinlein/bumper02.jpg
http://members.accessbee.com/heinlein/bumper03.jpg
http://members.accessbee.com/heinlein/bumper04.jpg
http://members.accessbee.com/heinlein/bumper05.jpg
http://members.accessbee.com/heinlein/bumper06.jpg
http://members.accessbee.com/heinlein/bumper07.jpg
http://members.accessbee.com/heinlein/bumper08.jpg

Write if you have any questions.

-Blake Heinlein
blakeheinlein@hotmail.com
http://members.accessbee.com/heinlein/