This question already has an answer here:
I haven't found much on the interweb:
- 'fast text', this is meant for IM
- A LOT of clocks in different shapes and colors
- some live camera icons, not a good match because out of the context
UPDATE: some clarifications are necessary. What I need is an idea for an icon, based on facts, studies, pre-existing art, conventions and best practices. So not from a graphic design point of view.