Scenario: there is an intruder in your house, which bone is your weapon of choice
Skull- a good projectile, can be held bowling ball style
Mandible- has teeth, good hand-fit for throwing
Clavicle- good for jabbing, especially in close quarters
Humorous- can make a lot of witty one liners, good for battering
Femur- the classic, good for swinging
Tibia- pretty club like, smaller for close range
Spine- thwip that thing like a whip
Pelvis- good grip, could be used to block as well as attack
Patella- David and Goliath it
Sternum- has a spike, can be treated like a stake
Scapula- large surface area- good for smacking in the face
Phalanges+carpus- chuck like marbles, hope they trip or get distracted