It seems to be a common trait among these online communities that people like to exchange recipes. Now, I know y'all like food, but considering our mutual schedules it might be somewhat unlikely that we'll jump all over a nice recipe for lemon chiffon cake. We've got small threads about various prop problems scattered all over the place, but I do so like to keep things tidy.
What recipes have you use for creating prop substances onstage? Blood, wine, alcoholic beverages, fire, and for what reasons?
I'll start with one from "Beauty Queen of Leenane." For those of you familiar with the script, you'll know that it calls for lots and lots of fake urine, poured out of chamber pots and at one point thrown onto an elderly actress. In order to safely cover for the latter issue while still making it look like the real thing, we used aloe juice (in the US I've seen this at Walgreen's in the vitamin section) diluted 1:3 with water. It is potable, light enough to not stain if you wash it out quickly, and not full of sugar. Bear in mind that aloe juice needs to be refrigerated once opened.