I discovered this during the last round of watering, on the 22nd. I'd seen the Stapelia start a number of buds since I bought it last summer, but most of them aborted while still tiny, and I'd pretty much given up on looking for flowers around November.
Which all means that by the time I found this one, it was already huge, roughly 6 inches (15 cm) from tip to base. I'm not especially looking forward to the smell, but I will be interested in getting a definite ID for it. Obviously updates will be forthcoming once something happens.