Related Clues:
- Brilliant thought
- Object of a brilliant thought
- The embryo of an invention
- Trial balloon, e.g.
- ''Hey, what's the big ___?''
- Gray matter creation
- Brainstorm aftermaths
- Patent basis
- Content of cognition
- ''What's the bright ___?''
- Asset for an entrepreneur
- Result of cogitating, perhaps
- Piece of mind?
- Seed of invention
- What may come to mind