Here's an idea for a bit of fun;
1) We start with a close up view (cropped/zoomed) of some kind of everyday object
2) Members try to guess what it is
3) If no-one guesses in say, a couple of days, a somewhat less cropped/zoomed version is posted
4) Guess again
5) Repeat 3) and 4) as necessary
6) When someone gets it right, they get to post the next picture and the whole thing repeats from 1)
Originally suggested by Alis and enhanced by carregwen (Rob).
The beauty of it is, you don't need a macro lens, etc., a smallish crop off almost any picture should do, it doesn't have to be microscopic to be usable.
If you win, but really don't have a picture to submit for the next round, just ask for a donation, I'm sure one will be forthcoming ...
Rob is going to start us off shortly ...