My wife asked for a stand to hold the dish soap upside down so that she didn't have to break her arm trying to get a nearly empty bottle to expel its contents, so I delivered.
This was designed for a 21.6 oz bottle of Dawn liquid dish soap, although I don't see any reason why it wouldn't work for other brands as well. I was surprised at the stability of the stand, on a whole, although have only tested it with volumes as shown in the pictures. Depending on the material that you print with you may want to scale the .stl to 101% or 102%.
Print time with standard 0.35mm FAST Prusa settings was ~3.25 hours.
additional infill was used for weight and stability more than for structure.