My last vehicle was a solid Buick that had the ability to carry just about anything and everything I could ever need to fix most problems (from vinyl tubing to jumper cables to toolkits galore) and so its name was MacGyver. Since I switched, people keep asking me what my truck's name is. So, I've decided that a vinyl decal telling people wouldn't be a bad idea.
What you'll need:
(Not "a humble vaudevillian veteran, cast vicariously as both victim and villain by the vicissitudes of Fate")
Step 1: Design Something
The program I used was CorelDraw X6, a rather amazing program. A few minutes of clicking and dragging will get a design that works and you'll be quickly on your way to having a named vehicle.
Step 2: Cut the Vinyl
Don't ask what Baud is...I honestly have no idea what it is besides a setting.
Step 3: Weed the Vinyl
You can see here how more and more blue is removed from the sheet until it ends with the decal.
The last step is adding a large sheet of transfer tape (it's basically a 2' wide piece of masking tape) that you use to sandwich the vinyl between the backing and the tape.
Step 4: Christening the Vehicle
Removing the white backing (not the sticky tape), you get a large sticker that you can put over wherever you want to mount the decal to. Careful pulling and prodding will usually get a clean removal on vehicles (glass is a little more tricky).
So, now I have a Duke blue truck with a UNC Chapel Hill blue decal of an ox named babe. Enough confusion there? (It also doesn't help that I went to NC State University)