I have that to stabilize the lampshade. So they do not tip to the side.
Works for 5 Liter and 7 Liter wine Bottle
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/55PIpN8QMwd
lampenschirmhalter_13_5l_flasche.stl | 62.4KB |