On the screen door of my back porch I found this small bug or fungus thing growing (or stuck to) the screen, I have no picture of it because it is so small you couldn't see it anyway but under a microscope it is a round gold metallic egg shaped thing with black texture marks running over it. The top is open like a cup and has small perfectly spaced clear spike/hair things around the rim, there are only six or so of them. Inside there seems to be nothing so I'm pretty sure this thing has served whatever purpose it had. around the outside of it are more small black spikes and one extremely long one at the very bottom where it connected to the screen and the others of its kind. When you put it over light it is transparent and over the cup opening at its top is a round cap piece, also metallic, that comes off very easily when you poke it with a tooth pick (i.e. I'm an idiot) The thing is no larger than a grain of sand and came in a bunch.
Any ideas as to what it is?