There's a whole quarry of rocky names parents are now considering: Slate, Flint, etc. , but this one is particularly hard-edged and problematic.

New, fast, cool, and chosen by director Robert Rodriguez, whose other sons are Rebel, Rocket, and Rogue, all somewhat risky options.

Dagger is one of the new badass baby names, a sharp and scary choice that some parents may feel arm their child for battle in a cruel modern world.

Extreme cool possibilities in either of these modern categories, like a postmodern Linc.

There are many fire-related names, from Aidan to Fiammetta, but the Flame isn't one that's often found on birth certificates. It's a highly symbolic word: flames can represent faith, passion and cleansing, for example, as well as straightforward heat and light.

This recently coined respelling of Cole darkens its image.

High-collared and straightlaced, with the deadly "Ox" nickname.

Kostas makes the ancient emperor's name more approachable.

Even if you're hoping for a fiery child, this seems like playing with fire. One celebrity--Steve Vai--was bold enough to use it for his son.

Wrecker is a new entry to the newly trendy group of badass baby names -- names mostly for boys that sound wild (or Wilder) and summon the kind of kid that races around (Racer), breaking things (Breaker), and yeah, why not, being a Wrecker while he's at it. Actor Cam Gigandet introduced this one, with a more phonetic spelling, when he named his son Rekker.

The version of Rob used in George R.R. Martin's A Song of Ice and Fire books and HBO's Game of Thrones.