Options include a few goodies specifically tailored for those who own crash helmets, like racing bucket seats composed of pure carbon fiber. (topspeed.com)
The end result of this process is 100 % pure carbon dioxide, suitable for use in reactions used to make rocket fuel. (marssociety.org)
Six years and several twists later, though, that feat might at last have been achieved, though not with pure carbon. (newscientist.com)