What is the minimum Shi'ur (volume) of a cup required for making Kiddush on liquor? Is there a smaller amount required than there is for wine? What is the minimum Shi'ur of the liquor that one is ...
If one doesn't have a non-disposable cup or becher available, can s/he use a disposable cup? Are there any specific types (plastic, styrofoam, paper...) of disposable cups allowed, or is any cup okay ...
Is there any reason behind whether people use a stemmed kiddush cup or not? Does it have to do with minhag? Kabbalah? I would have thought that some people who have a minhag to put their palm under ...
I know making kiddush with a plastic cup is problematic because of requirements. I have seen people using two plastic cups: what is the source for this and is it legitimate?