What is this prepper device?

Is he contacting aliens? Was walking the dog and saw this house adorned with all sorts of prepper chit. This one I have no idea.

Is it supposed to spin around in the wind? It wasn't turning at all, but then it wasn't windy either.

(reminds me of the mad scientist house in Far Cry 5)





Nocrew crew

SS final perma ban request
https://forum.obnoxiousbrutes.com/showthread.php?t=184614323