Here's mine - this is a Thanksgiving Cactus taken on November 2, 2005 with Canon 1D Mark II N + Canon 100mm F/2.8 macro lens @ F/5, 1/250 second, ISO 250
bear music's shot of the icicles is one of my all time favorite photos on this site. Love it!
I don't have a macro lens but here are my favorite close-up/macro shots from my portfolio.
This spider was hanging by his thread outside my apartment blowing around in the wind as I was trying to take the photo so it was hard to get him in focus!