My metals shop teacher needed some new artsy-type stuff cut out on our cnc plasma cutter for the freshman kids brazing projects. These three were the most popular:
The humming bird actually came with the plasmacutter software, I just touched it up a bit and removed the background.
The dragon was drawn with pencil by my girlfriend, I scanned it and re-drew it in Autocad 2000.
Anyone who is a fan of Fallout should know this one. It's the Brotherhood of Steel insignia. I got really bored and decided I wanted it hanging in my room, a friend of mine found a small chunk of brass plate, cut it out and shined it up really good.
These files are complete and ready to be resized/cut on a cnc machine. However, you may need to take out some of the detail in the dragons fire, the smallest pieces usually give me trouble.
HummingbirdRuby's DragonBrotherhood of Steel
If anybody knows of a better file host, feel free to tell me.