Good Bones, For Good.Logo Design Contest

We're a non-profit raising money for pediatric bone cancer research and ultimately a cure.

This logo should be able to live in a single color.
We're not opposed to color - gold or yellow are the colors more commonly associated with this cause-- but color is not a requirement.

This logo should look brave, confident, trustworthy and inspiring. (People will be donating money.)
While this is for a pediatric cancer, the logo/font shouldn't be too childish. (Again research and fundraising. For example Alex's Lemonade Stand is an amazing organization, but we feel the logo is too childish for us.)

We really don't want it to look like a dog bone or a dog charity.
We also do not want a ribbon.
Imagery ideas that might be worth exploring:
Muscles, Lion, Kid doing handstand, kid in celebratory pose, silhouette of child being active/flexing, An artistic rendering of a bone (that somehow doesn't look like a dog bone),