They say it represents Shiva. And clearly it represents the fundament of our being, the duality of male and female. I saw those in many hindu temples, one in Angkor Wat standing under an opening so the rain would fall on the lingam and then rin down into the yoni and flow out from there.

The source had put a thread into the bottom so it might sit on a water bottle. I carved out the lower semisphere, put a flat bottom to it and put it on top of a Stevenson screen so that they look like a stupa together. The lower semisphere is double walled so it helps isolating the thermo sensor below from the radiation and heat of the sun.
And when it rains the rain drops will fall on the lingam and rin down into the yoni and drip down from there.

Category: Sculptures