fake blood

I've recently come up with what I believe to be a new "recipe" for fake blood. It isn't sticky once it dries, it can be layered, even sculpted to a limited degree. I haven't tried it with the extremes of temperature you can get from outdoor displays, but I see no reason it wouldn't hold up...

I'm preparing an event at a local camping for july. We will be doing a haunted trail and one section of it will have a slaughter scene and I will need to integrate blood into it. I was thinking to use one of the many fake blood product of CFX and was wondering if anyone here tried them and if...