Related Clues:

• Jiffy Bag, e.g.
• "The Executioner's Song" Pulitzer winner
• Butterfly protector
• Chrysalis container
• Tube for shipping
• Silky sheath around chrysalis
• Silky sheath around a chrysalis
• The silky sheath around a chrysalis
• Protective covering around some animal eggs
• Protective covering around animal eggs
• Twice as firm on this to give the pup a covering, perhaps
• Give a pup a cover that's twice as firm on this
• That's twice as firm on an insect for a change.
• That will make a pup a double firm on the end
• That's a pup, a firm double on it