Related Clues:

• Ding-a-ling
• 'Space cadet'
• Fad item of 1961
• Show uncertainty
• Show wild instability
• It's used to walk the dog
• Swing wildly
• Doofus
• Toy making a comeback
• Fluctuate wildly
• It can be used to walk the dog
• Foolish one
• Toy on a finger
• Toy that does tricks
• Subject of a 1930's fad