Can somebody please share their best blood recipe ? There are many out there, and I really don't want to spend a day making blood unneccesarily I have acouple of uses in mind. One is putting the blood on white sheets, so I'm hoping the color will stay bright by Halloween... Hmmm.... or should I just use paint??? The other is in the bathtub, of which I'm alittle worried about staining.... Any comments would be greatly appreciated. Thank you !!!