It isn't perfect but it is interesting. Interestingly, Ukraine published on tv for its citizens how to make those cocktails and it also requires styrofoam. As a thickening agent. FYI google renders that.

"Why do they put polystyrene in Molotov cocktail?"

So we are not getting the best results. But interesting enough. Please don't make cocktails. Cognac is good enough. Also not worth throwing.