I presented the forums with a background on a character, and asked for builds to represent her. I got two responses, and of the two I chose one to stick with. The background for the character below was written by me, and the powers, etc. were created by Bashman!
Facet
Brawn 2 Agility 2 Mind 2 (12pts)
Powers: (10pts)
Density Increase 1 [Limitation: Always On] 1pt
Toughness: Boost 3 Brawn for Soak, 3pts
Armor 3 (x8+5 Soak), 3pts
Diamond Fist: Special Attack: +2DM, 2pts
Resistance 1 (Heat, Pressure) 1pt
Advantages Appeal, Unliving (by human standards); Disadvantages: Freak, Age (Young)
Skills: (not completed yet)
Total: 22 Pts
Facet has no knowledge of her home. She rocketed to Earth like a falling star one night sixteen years ago and was found unconscious by a family living nearby. She awoke two days later, screaming in pain and confusion. The family was able to calm her down and eventually communicate with her. Doctors were able to determine that she is a carbon based life form, but to the Nth degree; her body structure is solid diamond. She has no discernable internal structure or organs and although she doesn't appear to require oxygen or any type of sustenance, Facet has taken to imitating breathing to relax people talking to her, and eating (actually, chewing food into small bits and then surreptitiously passing the food into a napkin). She took the name after a question from her adopted sister about how many facets she had.
As you can imagine, she can withstand enormous amounts of physical harm without a mark. She is superhumanly strong, as there are no muscles or tendons to tear or break. No need to eat or breathe lets her continue almost indefinitely. However, she does require some semblance of sleep; approximately two hours a night to, as she puts it, "recharge". She does not seem to have a reliance on the sun, as scientists first thought she might, because she is able to operate day or night without any difference. For whatever reason, her form mimics human although she does not have any discernible genitalia. It's not even known if she can reproduce or how. Out of common decency, she does wear clothes, and can be just as shallow as any other teenage girl about her fashion. Upon closer inspection, her body shows no curved surfaces whatsoever. Her form is much like a computerized three dimensional form; literally thousands of small flat multi-sided shapes fit together like a puzzle and form complex shapes. Her face can create expressions (although they are sometimes hard to see; there is no color to her face other than the same blue). Under clothes, her form seems smooth and rounded like any human.
She is graceful, but only as much as her natural form lends itself to beauty in the eye of the beholder. That is not to imply that she's clumsy, but her manual dexterity, coordination, and agility have been assessed as normal for her... size and apparent age.
Facet is referred to as female because her physical form is that of a healthy teenage girl, albeit one who is solid faceted blue diamond. She hasn't appeared to age in the intervening sixteen years since her appearance on our planet.
Intellectually, she is the equivalent of a very bright young adult. She has had to learn everything in the same way a child is raised. She did not know how to communicate, either in anything resembling a native language or in her adopted parents English. Luckily, feeding and waste disposal weren't part of the equation, but she did have to learn how to crawl and then walk. She has managed to obtain a High School education through home schooling (public school was attempted at first, but she was considered too much of a distraction for other kindergarteners... especially since she was already 4' 8".
Contrary to popular beliefs, Facet has no "superpowers". She cannot fly. She cannot run with superspeed. She cannot float or swim, but she can walk along on the bottom as long as she doesn't sink in; she weighs approximately 300 pounds. However, she is extraordinarily strong, well on the order of magnitude of a professional world-class weight lifter, and she can be shot with a howitzer at point blank range without damage (it'll kick her back quite a few feet, as you can imagine, but she isn't damaged, and reports that she doesn't even "feel" anything.
There have been many instances in her life where she used her unique biology to help save human life. The very first time was when she was two years old (had been on Earth for two years; she considers her "fall" day to be her birth) and the local mini-mart had burst into flame. She simply walked into the market and brought out the owner, one employee, and two customers. Facet actually had to shield the last customer from the building as it collapsed before she could get him out. Since then, she is an active fan of fire and rescue people, and regularly just hangs out at the fire station (some believe she has an interest in a young man that works there). She always rides along on the truck and helps out, although they've had to prevent her from entering some buildings as her weight would make it collapse.
As far as anyone, including Facet, can tell, she is completely invulnerable. Even slamming into the Earth at well over three times the speed of sound left not a scratch on her. She's voluntarily tested her limits against everything they could throw at her short of a nuclear weapon.