Related Clues:
- Think-tank nuggets
- They may be bright
- Self-portraits, e.g.
- They're out of your mind
- Spittin' things
- Some E-mail attachments
- They may be funny or bright
- Suggestion box contents
- Mental representations
- They might be bounced off others
- 'An invasion of armies can be resisted; an invasion of ___ cannot be resisted': Hugo
- Brainstorming products
- ''Any ___?''
- Semblances
- Inventors have them