I like the flesh colour, ESP with things like strapons and dildos. As long as they are realistic in shape. If it's a bullet or butt plug etc, then it doesn't matter to me. I find black shows the the streaks more when fluid is drying. Just my thoughts.
A lot of mine end up pink. I don't really care too much as long as they arent black or red. Red I will occassionally go for, but at the end of the day if that's all there is I'm okay with that