Discovered this on a hard drive when I was searching for something else.
Last winter I went out and tapped on icicles hanging down from our eaves over the front porch. And apparently I cut it up into a sample set and didn’t do anything with it. These I release into the public domain. Knock yourself out.
http://www.cornwarning.com/xfer/IciclesSamples.zip
Not the actual icicles I struck.
cool