Related Clues:
- Creative flash
- Inventor's spark
- It starts with a germ
- Reason to shout ''Eureka!''
- ''The very'' item
- Prelude to an invention
- It's just a thought
- Invention
- Lightbulb's meaning, sometimes
- Birth of a plan
- Creative concept
- Word with ''big'' or ''good''
- Vague impression
- Brain-picker's pursuit
- It might be crazy