Thanks, Joel!
After seeing Jayson's wonderful snowflake shots, I wanted to find a smooth, dark background free from the fibers found on gloves or mittens. Joel, I know that you often have lovely backgrounds that are 'free' - forest, field, etc, but I spare no expense for my hobby. Accordingly, the smooth, dark background for my snowflake shots cost over $30,000.
In all fairness, I should point out that this particular background just
might have a few other uses, such as transporting three kids in their car seats.
I just brushed off the glass, waited for attractive snowflakes to land on it, and shot the pictures (handheld) before they slid down off the glass.