If you are like me you don't immediately throw away oil and sauce bottles when they are empty because in truth they are not. You just can't get the very last out of that @#*& bottle.
And if you are like me you don't just accept that fact and put the bottle away anyway. No you open your modeling software and create a solution.
So I did. Behold the “Restentleerungsflaschenhalter” (German, roughly translates as: The bottle stand to really get every drop out of a bottle). Isn't German a fun language?
As you can see from the photos it should fit a wide variety of bottles. Feel free to remix if needed.
The author marked this model as their own original creation.