This could turn into a fun thread. Here's a severe clear ice/SLD encounter I had on my way to RUT last winter. Went from light mixed ice to 2 inches of nice, heavy, clear ice in about 60 seconds (I think) and thanks to Murphy's law, the valve for the boots froze up just then too. Obviously I was too busy at the time to take any pictures, but after 30 minutes or so on terra firma, I went out to see if anything was left on the airplane and found this... (hard to tell, but the ice is about 1 inch thick on the most forward part of the nose.)