My get-pushed challenge from @geertje this week was to "use a water-drop as a magnifier-glass".
Even though I have sprayed & 'dropped' almost every article in my house with water, I struggled to find photographically interesting ways to capture the concept, but if you look reeeelly carefully, you see a few of the drops magnifying parts of this dandelion! ;)
My other effort is at http://365project.org/ltodd/extras/2012-11-27