Under the Big Tent

[Mark Knowles]

That is, the ornament is located on the outside of the gutter, but on the inside, through which water flows, it is not needed. The gutters can be made of ceramic or large bamboo.
If the central leg of the left canopy ends with something similar to a water flow distributor, then the central gutter of the right canopy ends with a “horseshoe” (red circle). I identify it as a tunnel with water (blue paint).

I agree. I have said that these "legs" are most likely water pipes.