What the heck is it???

Water droplets on glass

That would have been my guess as well. Too easy!

That was my guess, too! Agree with Jean --- too easy!

captbob could be a matte opaque glass.

Odd that the shadows are different. On the left, looks like the light source was lower left. On the right, no indication --- even shadows all the way around.

@shotgunner show us your setup!

Interesting. I knew it was glass, did not realize it was car windshield.

Do you have any more photos of unusual/questionable things? (That are G-rated, lol.)

Yes, inside looking out and up at a grey sky.

Drops on the outside, me on the inside. The black must be dark areas around me. If you look to the far right side you can see some trees. There was no rain at that moment. The rain had stopped and the mist formed these droplets. I like the way there was little ones between the big ones, that inspired the image. I got 6 snaps in before rain ruined the scene!

actually, I use a similar product and this is why the droplets are formed. I don't need windshield wipers on the highway when it rains.

When the rain started just a little bit, the droplets got heavier and sheeted right of the glass.

Very cool photo - I was not thinking glass/water at all lol I thought it looked similar to close-up shot I took of a thin rubber adhesive pad.

Actually, it does.

BUT

That image was captured in Northern Cali! haha!