Possible Clues:

• Legs : fibulae :: arms : ___
• Heartily pull and eat leg bones
• Bones in ocean luridly reflected
• Follow you along well-organised lane for bones
• Bones parallel to radii
• Wrist bones
• "Bones", the reverse of Captain Picard, say, ignoring boundaries
• Hand holders?
• Elbow attachments
• It's insurable minus ribs and some of the bones in the arms